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Årsredovisning 2025
regulations. Stora Enso has formal traceability systems in place to ensure that the origin of purchased wood and pulp is known. These traceability systems are third-party verified through the FSC Chain of Custody/ Controlled Wood scheme, the PEFC Chain of Custody/Due Diligence System, and ISO 14001. Most of the pulp used in operations is produced internally at the Group’s mills. Stora Enso also purchases pulp from external suppliers for reasons related to quality and logistics. Pulp purchased from external suppliers is covered by Stora Enso’s traceability systems. However, the new European Deforestation Regulation (EUDR) increases the requirements for Stora Enso. Some of Stora Enso’s production units are located near biodiversity- sensitive areas, such as Natura 2000, but these sites do not actively contribute to the deterioration of natural habitats due to strict environmental permitting processes. The biodiversity-related impacts and risks connected to production units are described in ESRS E2 and ESRS E3. Whenever a new industrial unit is established or production capacities are increased, Stora Enso ensures that the project plan undergoes an environmental impact assessment including a thorough evaluation of biodiversity-sensitive areas. The assessment is used to determine significant impacts. To identify biodiversity-sensitive sites, Stora Enso screened all of its production site locations by applying the IBAT assessment tool to create an overview of key biodiversity areas located in conjunction with its industrial operations. The Group’s own forests and upstream harvesting sites may also be near or located in biodiversity-sensitive areas. The impacts on biodiversity- sensitive areas are described in ESRS E4 SBM-3. Stora Enso acknowledges the necessity of implementing measures to mitigate any negative effects on biodiversity. These are part of the Group’s ways of working and are further described in ESRS E4-3. Resource use and circularity (E5: ESRS 2 IRO-1) The assessment covered impacts related to the Group’s resource use across its whole value chain due to significant volumes of resource inflows, outflows and waste (sourced raw materials, waste, products produced, and end-of-life of products). Since Stora Enso and its upstream value chain are responsible for raw material extraction, the downstream value chain was not considered material in the assessment. Resource outflows and product-related impacts were assessed using Life Cycle Assessments and Environmental Product Declarations, carried out by Stora Enso’s experts and customers, often in collaboration with academia, expert organisations, or industry associations. Stora Enso advances the circular economy through its renewable products and solutions, with partnerships and business relationships playing a key role in enabling these positive impacts. At the same time, the Group recognises negative impacts linked to raw material sourcing and waste generation. When identifying opportunities in the circular economy, Stora Enso referred to its 2021 circularity transition plan, which recognised financial potential in the downstream value chain through products and solutions that help customers meet rising demand for sustainable goods. By leveraging its strong customer relationships and deep understanding of market needs, the Group designs functional products that create value throughout their lifecycle. Risks were screened as part of the Enterprise Risk Management process and analysis of Stora Enso’s transition plan. Political decisions on forest resources could limit wood availability, raise costs, and hinder investments. Regulations may also restrict the production of single-use products, even those made from fiber-based materials. In addition, rising demand for biobased materials, especially wood-based raw materials, could lead to supply shortages. Affected stakeholders were not directly consulted in the double materiality assessment, but their perspectives were represented through internal subject matter experts and customer surveys. Business conduct (G1: ESRS 2 IRO-1) The assessment of business conduct–related topics incorporated internal interviews across Group Legal and the Group CFO Office, global data from the company’s whistleblower system, and insights from the annual employee survey. Ethics and compliance risks are assessed as part of Stora Enso’s overall risk assessment procedure, outlined in the Enterprise Risk Management instructions. The Ethics and Compliance Self-Assessment Tool (T.E.S.T.) provides business units and functions with an overview of their progress in implementing policies and compliance measures, while also identifying and managing possible gaps and risks. The double materiality assessment also incorporated findings from counterparty screenings and categorisation of high-risk countries to support the identification of material risks. Trade sanction controls and high-risk countries are disclosed in ESRS G1-1. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 80 ===== SIDA 81 ===== Requirements in ESRS covered by the undertaking’s sustainability statement (ESRS IRO-2) The below table presents a list of the disclosure requirements compiled in the Sustainability Statement. The material information has been determined based on the material impacts, risks and opportunities resulting from the Group’s materiality assessment. After identifying material topical standards, the materiality was assessed on disclosure requirement and data point level. The materiality assessment process and the use of thresholds is described in ESRS 2 IRO-1. General information ESRS 2 BP-1 General basis for preparation of sustainability statements 69 ESRS 2 BP-2 Disclosures in relation to specific circumstances 69 ESRS 2 GOV-1 The role of the administrative, management and supervisory bodies 70 ESRS 2 GOV-2 Information provided to and sustainability matters addressed by the undertaking’s administrative, management and supervisory bodies 71 ESRS 2 GOV-3 Integration of sustainability-related performance in incentive schemes 71 ESRS 2 GOV-4 Statement on due diligence 71 ESRS 2 GOV-5 Risk management and internal controls over sustainability reporting 72 ESRS 2 SBM-1 Strategy, business model and value chain 72 ESRS 2 SBM-2 Interests and views of stakeholders 74 ESRS 2 SBM-3 Material impacts, risks and opportunities and their interaction with strategy and business model 75 ESRS 2 IRO-1 Description of the process to identify and assess material impacts, risks and opportunities 77 ESRS 2 IRO-2 disclosure requirements in ESRS covered by the undertaking’s sustainability statement 81 Environmental information E1 Climate change ESRS 2 GOV-3 Integration of sustainability-related performance in incentive schemes 71 E1 Climate change E1-1 Transition plan for climate change mitigation 92 E1 Climate change ESRS 2 SBM-3 Material impacts, risks and opportunities and their interaction with strategy and business model 92 E1 Climate change ESRS 2 IRO-1 Description of the processes to identify and assess material climate-related impacts, risks and opportunities 77 E1 Climate change E1-2 Policies related to climate change mitigation and adaptation 93 E1 Climate change E1-3 Actions and resources in relation to climate change policies 93 E1 Climate change E1-4 Targets related to climate change mitigation and adaptation 95 E1 Climate change E1-5 Energy consumption and mix 96 E1 Climate change E1-6 Gross Scopes 1, 2, 3 and Total GHG emissions 97 E1 Climate change E1-7 GHG removals and GHG mitigation projects financed through carbon credits 99 ESRS Disclosure requirement Page E1 Climate change E1-9 Anticipated financial effects from material physical and transition risks and potential climate-related opportunities 99 E2 Pollution ESRS 2 IRO-1 Description of the processes to identify and assess material pollution-related impacts, risks and opportunities 77 E2 Pollution E2-1 Policies related to pollution 101 E2 Pollution E2-2 Actions and resources related to pollution 101 E2 Pollution E2-3 Targets related to pollution 102 E2 Pollution E2-4 Pollution of air, water and soil 103 E3 Water and marine resources ESRS 2 IRO-1 Description of the processes to identify and assess material water and marine resources-related impacts, risks and opportunities 77 E3 Water and marine resources E3-1 Policies related to water and marine resources 104 E3 Water and marine resources E3-2 Actions and resources related to water and marine resources 104 E3 Water and marine resources E3-3 Targets related to water and marine resources 105 E3 Water and marine resources E3-4 Water consumption 105 E4 Biodiversity and ecosystems E4-1 Transition plan and consideration of biodiversity and ecosystems in strategy and business model 106 E4 Biodiversity and ecosystems ESRS 2 SBM-3 Material impacts, risks and opportunities and their interaction with strategy and business model 106 E4 Biodiversity and ecosystems IRO-1 Description of processes to identify and assess material biodiversity and ecosystem- related impacts, risks and opportunities 77 E4 Biodiversity and ecosystems E4-2 Policies related to biodiversity and ecosystems 107 E4 Biodiversity and ecosystems E4-3 Actions and resources related to biodiversity and ecosystems 107 E4 Biodiversity and ecosystems E4-4 Targets related to biodiversity and ecosystems 108 E4 Biodiversity and ecosystems E4-5 Impact metrics related to biodiversity and ecosystems change 110 E5 Resource use and circular economy ESRS 2 IRO-1 Description of the processes to identify and assess material resource use and circular economy-related impacts, risks and opportunities 77 E5 Resource use and circular economy E5-1 – Policies related to resource use and circular economy 112 E5 Resource use and circular economy E5-2 – Actions and resources related to resource use and circular economy 112 E5 Resource use and circular economy E5-3 – Targets related to resource use and circular economy 113 ESRS Disclosure requirement Page Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 81 ===== SIDA 82 ===== E5 Resource use and circular economy E5-4 – Resource inflows 114 E5 Resource use and circular economy E5-5 – Resource outflows 115 Social information S1 Own workforce ESRS 2 SBM-2 Interests and views of stakeholders 74 S1 Own workforce ESRS 2 SBM-3 Material impacts, risks and opportunities and their interaction with strategy and business model 116 S1 Own workforce S1-1 Policies related to own workforce 117 S1 Own workforce S1-2 Processes for engaging with own workforce and workers’ representatives about impacts118 S1 Own workforce S1-3 Processes to remediate negative impacts and channels for own workforce to raise concerns 118 S1 Own workforce S1-4 Taking action on material impacts on own workforce, and approaches to managing material risks and pursuing material opportunities related to own workforce, and effectiveness of those actions 119 S1 Own workforce S1-5 Targets related to managing material negative impacts, advancing positive impacts, and managing material risks and opportunities 119 S1 Own workforce S1-6 Characteristics of the undertaking’s employees 120 S1 Own workforce S1-8 Collective bargaining coverage and social dialogue 121 S1 Own workforce S1-9 Diversity metrics 121 S1 Own workforce S1-10 – Adequate wages 121 S1 Own workforce S1-14 – Health and safety metrics 121 S1 Own workforce S1-16 – Remuneration metrics (pay gap and total remuneration) 122 S1 Own workforce S1-17 – Incidents, complaints and severe human rights impacts 122 S2 Workers in the value chain SBM-2 Interests and views of stakeholders 74 S2 Workers in the value chain SBM-3 Material impacts, risks and opportunities and their interaction with strategy and business model 123 S2 Workers in the value chain S2-1 Policies related to value chain workers 123 S2 Workers in the value chain S2-2 Processes for engaging with value chain workers about impacts 124 S2 Workers in the value chain S2-3 Processes to remediate negative impacts and channels for value chain workers to raise concerns 124 S2 Workers in the value chain S2-4 Taking action on material impacts on value chain workers, and approaches to managing material risks and pursuing material opportunities related to value chain workers, and effectiveness of those action 124 S2 Workers in the value chain S2-5 Targets related to managing material negative impacts, advancing positive impacts, and managing material risks and opportunities 125 S3 Affected communities ESRS 2 SBM-2 – Interests and views of stakeholders 74 S3 Affected communities ESRS 2 SBM-3 - Material impacts, risks and opportunities and their interaction with strategy and business mode 126 ESRS Disclosure requirement Page S3 Affected communities S3-1 – Policies related to affected communities 126 S3 Affected communities S3-2 – Processes for engaging with affected communities about impacts 127 S3 Affected communities S3-3 – Processes to remediate negative impacts and channels for affected communities to raise concerns 127 S3 Affected communities S3-4 – Taking action on material impacts on affected communities, and approaches 128 S3 Affected communities S3-5 – Targets related to managing material negative impacts, advancing positive effectiveness of those actions 128 Governance information G1 Business Conduct GOV-1 The role of the administrative, supervisory and management bodies 70 G1 Business Conduct ESRS 2 IRO-1 Description of the processes to identify and assess material impacts, risks and opportunities 77 G1 Business Conduct G1-1 Business conduct policies and corporate culture 129 G1 Business Conduct G1-3 Prevention and detection of corruption and bribery 130 G1 Business Conduct G1-4 Incidents of corruption or bribery 132 ESRS Disclosure requirement Page Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 82 ===== SIDA 83 ===== List of data points in cross-cutting and topical standards that derive from other EU legislation ESRS 2 GOV-1 Board’s gender diversity paragraph 21 (d) Indicator number 13 of Table #1 of Annex 1 Commission Delegated Regulation (EU) 2020/1816 ( 27 ), Annex II page 70 ESRS 2 GOV-1 Percentage of board members who are independent paragraph 21 (e) Delegated Regulation (EU) 2020/1816, Annex II page 70 ESRS 2 GOV-4 Statement on due diligence paragraph 30 Indicator number 10 Table #3 of Annex 1 page 71 ESRS 2 SBM-1 Involvement in activities related to fossil fuel activities paragraph 40 (d) i Indicator number 4 Table #1 of Annex 1 Delegated Regulation (EU) 2020/1816, Annex II n/a ESRS 2 SBM-1 Involvement in activities related to chemical production paragraph 40 (d) ii Indicator number 9 Table #2 of Annex 1 Delegated Regulation (EU) 2020/1816, Annex II n/a ESRS 2 SBM-1 Involvement in activities related to controversial weapons paragraph 40 (d) iii Indicator number 14 Table #1 of Annex 1 Delegated Regulation (EU) 2020/1818 ( 29 ), Article 12(1) Delegated Regulation (EU) 2020/1816, Annex II n/a ESRS 2 SBM-1 Involvement in activities related to cultivation and production of tobacco paragraph 40 (d) iv Article 449a Regulation (EU) No 575/2013; Commission Implementing Regulation (EU) 2022/2453 ( 28 ) Table 1: Qualitative information on Environmental risk and Table 2: Qualitative information on Social risk Delegated Regulation (EU) 2020/1818, Article 12(1) Delegated Regulation (EU) 2020/1816, Annex II n/a ESRS E1-1 Transition plan to reach climate neutrality by 2050 paragraph 14 Regulation (EU) 2021/1119, Article 2(1) page 92 ESRS E1-1 Undertakings excluded from Paris-aligned Benchmarks paragraph 16 (g) Article 449a Regulation (EU) No 575/2013; Commission Implementing Regulation (EU) 2022/2453 Template 1: Banking book-Climate Change transition risk: Credit quality of exposures by sector, emissions and residual maturity Delegated Regulation (EU) 2020/1818, Article12.1 (d) to (g), and Article 12.2 page 92 ESRS E1-4 GHG emission reduction targets paragraph 34 Indicator number 4 Table #2 of Annex 1 Article 449a Regulation (EU) No 575/2013; Commission Implementing Regulation (EU) 2022/2453 Template 3: Banking book – Climate change transition risk: alignment metrics Delegated Regulation (EU) 2020/1818, Article 6 page 94 ESRS E1-5 Energy consumption from fossil sources disaggregated by sources (only high climate impact sectors) paragraph 38 Indicator number 5 Table #1 and Indicator n. 5 Table #2 of Annex 1 page 96 ESRS E1-5 Energy consumption and mix paragraph 37 Indicator number 5 Table #1 of Annex 1 page 97 ESRS E1-5 Energy intensity associated with activities in high climate impact sectors paragraphs 40 to 43 Indicator number 6 Table #1 of Annex 1 page 97 Disclosure requirement and related data point SFDR reference Pillar 3 reference Benchmark Regulation reference EU Climate Law reference Location in the Sustainability Statement Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 83 ===== SIDA 84 ===== ESRS E1-6 Gross Scope 1, 2, 3 and Total GHG emissions paragraph 44 Indicators number 1 and 2 Table #1 of Annex 1 Article 449a; Regulation (EU) No 575/2013; Commission Implementing Regulation (EU) 2022/2453 Template 1: Banking book – Climate change transition risk: Credit quality of exposures by sector, emissions and residual maturity Delegated Regulation (EU) 2020/1818, Article 5(1), 6 and 8(1) page 99 ESRS E1-6 Gross GHG emissions intensity paragraphs 53 to 55 Indicator number 3 Table #1 of Annex 1 Article 449a Regulation (EU) No 575/2013; Commission Implementing Regulation (EU) 2022/2453 Template 3: Banking book – Climate change transition risk: alignment metrics Delegated Regulation (EU) 2020/1818, Article 8(1) page 99 ESRS E1-7 GHG removals and carbon credits paragraph 56 Regulation (EU) 2021/1119, Article 2(1) page 99 ESRS E1-9 Exposure of the benchmark portfolio to climate- related physical risks paragraph 66 Delegated Regulation (EU) 2020/1818, Annex II Delegated Regulation (EU) 2020/1816, Annex II pages 99-100 (only qualitative disclosure) ESRS E1-9 Disaggregation of monetary amounts by acute and chronic physical risk paragraph 66 (a) ESRS E1-9 Location of significant assets at material physical risk paragraph 66 (c) Article 449a Regulation (EU) No 575/2013; Commission Implementing Regulation (EU) 2022/2453 paragraphs 46 and 47; Template 5: Banking book - Climate change physical risk: Exposures subject to physical risk. pages 99-100 (only qualitative disclosure) ESRS E1-9 Breakdown of the carrying value of its real estate assets by energy-efficiency classes paragraph 67 (c). Article 449a Regulation (EU) No 575/2013; Commission Implementing Regulation (EU) 2022/2453 paragraph 34;Template 2:Banking book -Climate change transition risk: Loans collateralised by immovable property - Energy efficiency of the collateral pages 99-100 (only qualitative disclosure) ESRS E1-9 Degree of exposure of the portfolio to climate- related opportunities paragraph 69 Delegated Regulation (EU) 2020/1818, Annex II pages 99-100 (only qualitative disclosure) ESRS E2-4 Amount of each pollutant listed in Annex II of the E-PRTR Regulation (European Pollutant Release and Transfer Register) emitted to air, water and soil, paragraph 28 Indicator number 8 Table #1 of Annex 1 Indicator number 2 Table #2 of Annex 1 Indicator number 1 Table #2 of Annex 1 Indicator number 3 Table #2 of Annex 1 page 103 ESRS E3-1 Water and marine resources paragraph 9 Indicator number 7 Table #2 of Annex 1 page 14 ESRS E3-1 Dedicated policy paragraph 13 Indicator number 8 Table 2 of Annex 1 page 104 ESRS E3-1 Sustainable oceans and seas paragraph 14 Indicator number 12 Table #2 of Annex 1 Not material ESRS E3-4 Total water recycled and reused paragraph 28 (c) Indicator number 6.2 Table #2 of Annex 1 page 105 ESRS E3-4 Total water consumption in m3 per net revenue on own operations paragraph 29 Indicator number 6.1 Table #2 of Annex 1 page 105 ESRS 2 SBM-3 - E4 paragraph 16 (a) i Indicator number 7 Table #1 of Annex 1 page 106 ESRS 2 SBM-3 - E4 paragraph 16 (b) Indicator number 10 Table #2 of Annex 1 page 106 ESRS 2 SBM-3 - E4 paragraph 16 (c) Indicator number 14 Table #2 of Annex 1 page 106 ESRS E4-2 Sustainable land / agriculture practices or policies paragraph 24 (b) Indicator number 11 Table #2 of Annex 1 page 107 Disclosure requirement and related data point SFDR reference Pillar 3 reference Benchmark Regulation reference EU Climate Law reference Location in the Sustainability Statement Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 84 ===== SIDA 85 ===== ESRS E4-2 Sustainable oceans / seas practices or policies paragraph 24 (c) Indicator number 12 Table #2 of Annex 1 Not material ESRS E4-2 Policies to address deforestation paragraph 24 (d)Indicator number 15 Table #2 of Annex 1 page 107 ESRS E5-5 Non-recycled waste paragraph 37 (d) Indicator number 13 Table #2 of Annex 1 page 115 ESRS E5-5 Hazardous waste and radioactive waste paragraph 39 Indicator number 9 Table #1 of Annex 1 page 115 ESRS 2 SBM-3 - S1 Risk of incidents of forced labour paragraph 14 (f) Indicator number 13 Table #3 of Annex I page 116 ESRS 2 SBM-3 - S1 Risk of incidents of child labour paragraph 14 (g) Indicator number 12 Table #3 of Annex I page 116 ESRS S1-1 Human rights policy commitments paragraph 20 Indicator number 9 Table #3 and Indicator number 11 Table #1 of Annex I page 117 ESRS S1-1 Due diligence policies on issues addressed by the fundamental International Labor Organisation Conventions 1 to 8, paragraph 21 Delegated Regulation (EU) 2020/1816, Annex II page 117 ESRS S1-1 processes and measures for preventing trafficking in human beings paragraph 22 Indicator number 11 Table #3 of Annex I page 117 ESRS S1-1 workplace accident prevention policy or management system paragraph 23 Indicator number 1 Table #3 of Annex I page 117 ESRS S1-3 grievance/complaints handling mechanisms paragraph 32 (c) Indicator number 1 Table #3 of Annex I page 118 ESRS S1-14 Number of fatalities and number and rate of work- related accidents paragraph 88 (b) and (c) Indicator number 2 Table #3 of Annex I Delegated Regulation (EU) 2020/1816, Annex II page 122 ESRS S1-14 Number of days lost to injuries, accidents, fatalities or illness paragraph 88 (e) Indicator number 3 Table #3 of Annex I Phased-in, not disclosed in 2025 ESRS S1-16 Unadjusted gender pay gap paragraph 97 (a) Indicator number 12 Table #1 of Annex I Delegated Regulation (EU) 2020/1816, Annex II page 122 ESRS S1-16 Excessive CEO pay ratio paragraph 97 (b) Indicator number 8 Table #3 of Annex I page 122 ESRS S1-17 Incidents of discrimination paragraph 103 (a) Indicator number 7 Table #3 of Annex I page 122 ESRS S1-17 Non-respect of UNGPs on Business and Human Rights and OECD Guidelines paragraph 104 (a) Indicator number 10 Table #1 and Indicator n. 14 Table #3 of Annex I Delegated Regulation (EU) 2020/1816, Annex II Delegated Regulation (EU) 2020/1818 Art 12 (1) page 122 ESRS 2 SBM-3 – S2 Significant risk of child labour or forced labour in the value chain paragraph 11 (b) Indicators number 12 and n. 13 Table #3 of Annex I page 123 ESRS S2-1 Human rights policy commitments paragraph 17 Indicator number 9 Table #3 and Indicator n. 11 Table #1 of Annex 1 page 123 ESRS S2-1 Policies related to value chain workers paragraph 18 Indicator number 11 and n. 4 Table #3 of Annex 1 page 123 ESRS S2-1 Non-respect of UNGPs on Business and Human Rights principles and OECD guidelines paragraph 19 Indicator number 10 Table #1 of Annex 1 Delegated Regulation (EU) 2020/1816, Annex II Delegated Regulation (EU) 2020/1818, Art 12 (1) page 123 Disclosure requirement and related data point SFDR reference Pillar 3 reference Benchmark Regulation reference EU Climate Law reference Location in the Sustainability Statement Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 85 ===== SIDA 86 ===== ESRS S2-1 Due diligence policies on issues addressed by the fundamental International Labor Organisation Conventions 1 to 8, paragraph 19 Delegated Regulation (EU) 2020/1816, Annex II page 123 ESRS S2-4 Human rights issues and incidents connected to its upstream and downstream value chain paragraph 36 Indicator number 14 Table #3 of Annex 1 page 124 ESRS S3-1 Human rights policy commitments paragraph 16 Indicator number 9 Table #3 of Annex 1 and Indicator number 11 Table #1 of Annex 1 page 126 ESRS S3-1 non-respect of UNGPs on Business and Human Rights, ILO principles or OECD guidelines paragraph 17 Indicator number 10 Table #1 Annex 1 Delegated Regulation (EU) 2020/1816, Annex II Delegated Regulation (EU) 2020/1818, Art 12 (1) page 126 ESRS S3-4 Human rights issues and incidents paragraph 36 Indicator number 14 Table #3 of Annex 1 page 128 ESRS S4-1 Policies related to consumers and end-users paragraph 16 Indicator number 9 Table #3 and Indicator number 11 Table #1 of Annex 1 Not material ESRS S4-1 Non-respect of UNGPs on Business and Human Rights and OECD guidelines paragraph 17 Indicator number 10 Table #1 of Annex 1 Delegated Regulation (EU) 2020/1816, Annex II Delegated Regulation (EU) 2020/1818, Art 12 (1) Not material ESRS S4-4 Human rights issues and incidents paragraph 35 Indicator number 14 Table #3 of Annex 1 Not material ESRS G1-1 United Nations Convention against Corruption paragraph 10 (b) Indicator number 15 Table #3 of Annex 1 page 129 ESRS G1-1 Protection of whistle- blowers paragraph 10 (d) Indicator number 6 Table #3 of Annex 1 page 130 ESRS G1-4 Fines for violation of anti-corruption and anti- bribery laws paragraph 24 (a) Indicator number 17 Table #3 of Annex 1 Delegated Regulation (EU) 2020/1816, Annex II) page 132 ESRS G1-4 Standards of anti- corruption and anti- bribery paragraph 24 (b) Indicator number 16 Table #3 of Annex 1 page 132 Disclosure requirement and related data point SFDR reference Pillar 3 reference Benchmark Regulation reference EU Climate Law reference Location in the Sustainability Statement Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 86 ===== SIDA 87 ===== Environmental information In this section EU Taxonomy ........................................................................................................... 87 E S R S E 1 C l i m a t e c h a n g e ...................................................................................... 92 E S R S E 2 P o l l u t i o n ..................................................................................................... 101 E S R S E 3 W a t e r a n d m a r i n e r e s o u r c e s ............................................................ 104 E S R S E 4 B i o d i v e r s i t y a n d e c o s y s t e m s ............................................................. 106 E S R S E 5 R e s o u r c e u s e a n d c i r c u l a r e c o n o m y .............................................. 112 EU Taxonomy To meet the EU’s climate and energy targets for 2030 and reach the objectives of the European Green Deal, a classification system for sustainable economic activities called EU Taxonomy was introduced in 2020. Companies in the scope of the Corporate Sustainability Reporting Directive are obligated to report the share of Taxonomy-eligibility and Taxonomy-alignment in their operations. Taxonomy-eligibility describes if an economic activity is included in the scope of activities recognised in the EU Taxonomy Regulation. Taxonomy-alignment describes if an economic activity is sustainable based on the technical screening criteria for substantial contribution and do-no-significant harm specified for the activity. Taxonomy-aligned activity needs to be also carried out in compliance with the minimum safeguards, thus to respect basic human rights and follow good business conduct rules. For the financial year 2025, Stora Enso has opted to apply the EU Taxonomy disclosure requirements as set out in Commission Delegated Regulation (EU) 2021/2178, prior to the amendments introduced by Commission Delegated Regulation of 4 July 2025. Breakdown of EU Taxonomy key performance indicators in 2025 EUR million Turnover1 Capex Opex Taxonomy aligned activities 469 5.0% 47 6.3% 68 9.8% Taxonomy eligible but not aligned activities 136 1.5% 8 1.1% 32 4.6% Total taxonomy eligible activities 605 6.5% 55 7.4% 100 14.4% Taxonomy non-eligible activities 8,721 93.5% 691 92.6% 592 85.6% Total 9,326 100% 746 100% 692 100% 1 Turnover matches with the Group’s total sales. Rental income excluded. Taxonomy eligible and aligned activities Stora Enso has identified six eligible activities to report in the EU Taxonomy in the conducted annual exercise. From Stora Enso’s main activities, the production of wood-based solutions for construction industry is included in the EU Taxonomy through its contribution to buildings energy efficiency. Other main activities, production of pulp, consumer board, containerboard and corrugated packaging, are yet excluded from the scope of the EU Taxonomy. Economic activity Description 1.3 Forest management The activities in the forests owned by Stora Enso in Sweden. Tree plantations in South America and China are not included in the activity. 1.4 Conservation forestry Stora Enso’s 50% owned joint operation Veracel has dedicated more than half of its land for the protection and restoration of biological biodiversity in natural Atlantic rainforest. This rainforest is excluded from the harvesting activities. 2.4 Remediation of contaminated sites and areas Remediation projects of contaminated sites and areas related to discontinued operations and mill closures at Stora Enso sites. 3.4 Manufacture of batteries Pilot plant costs and research and development expenses related to hard carbon innovation. 3.5 Manufacture of energy efficiency equipment for buildings Wood-based solutions for the construction industry which contribute to buildings energy efficiency. Door, window and roofing components and external wall systems manufactured from classic sawn, CLT, LVL and construction beams are considered eligible. 4.20 Cogeneration of heat/cool and power from bioenergy Wood side-streams and by-products from the pulp process are used for energy production. The bioenergy generated from biobased feedstock is considered eligible. 100% of Stora Enso’s Swedish forests are certified under certification systems (PEFC or FSC) which lays the foundation for sustainable forest management. Stora Enso considers its 1.3 Forest management and 1.4 Conservation practices aligned with EU Taxonomy, but has been unable to fulfil the third party verification requirement described in forest management and conservation forestry substantial contribution criteria (section 4. Audit). Stora Enso remains open to engaging with a partner capable of conducting EU Taxonomy compliant verification. Until such partner is found the Group reports its forest management and conservation forestry as eligible but not-aligned in EU Taxonomy. The alignment assessment of 3.4 Manufacture of batteries activity is done based on the predicted future industrial scale operations and production which will be aligned with the technical screening criteria of the activity once started. Compliance with the criteria is considered through life-cycle GHG assessments that confirm lignin-based carbon having potential for substantial GHG emission reductions in transport and in off-grid energy storage. Since Stora Enso is not a manufacturer of the end products, the compliance with the activity’s 3.5 Manufacture of energy efficiency equipment for buildings substantial contribution was assessed based on the knowledge of the end use and the energy efficiency related Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 87 ===== SIDA 88 ===== regulations in the primary market areas. Compliance with the criteria is assessed based on customers, known use-cases, and the U-values of the final products (such as window components). The eligibility and alignment assessments for all activities have been carried out based on the best interpretation of the Taxonomy Regulation and the available guidelines from the European Commission. In case of unclarities, the conservative approach has been chosen. Accounting principles The EU Taxonomy KPIs, turnover, capex and opex, are presented in separate tables as defined in the regulation. Double counting is avoided by having a clear cost structure in reporting which ensures that the profit centers and cost elements are separate for each activity. In reporting, the activities do not overlap between environmental objectives. Turnover The total turnover is the Group’s total sales, as presented in the line of sales, in consolidated income statement and in note 2.1 Segment information, which respectively include the IFRS 15 income according to the EU Taxonomy turnover definition. Rental income recognised under IFRS 16 is no longer included to ensure full reconciliation with the Group’s reported total sales. The external sales connected to the economic activities are reported under Taxonomy-eligible turnover. Taxonomy-eligible and aligned shares of turnover remained consistent with the previous reporting period. The output of 1.3 Forest management activity, the grown wood, is used mostly internally in Stora Enso’s own operations. The forest management turnover in the EU Taxonomy includes the sale of externally sold roundwood and forest residuals. In category 3.5 Manufacture of energy efficiency equipment for buildings, the external sales related to the share of production that is estimated to end up for doors, windows, roofing and external wall systems, is included under the EU Taxonomy turnover. In category 4.20 Cogeneration of heat/cool and power from bioenergy, the turnover includes the external sales of the excess electricity and heat which is not consumed internally. Capex The total capex is the Group’s total capital expenditure in 2025, as presented in the line of additions, excluding goodwill additions, in note 4.1 Intangible assets, property, plant and equipment and right of use assets, and note 4.2 Forest assets. The Taxonomy-eligible capex are the investments related to the assets or processes associated with the respective economic activities. Taxonomy-eligible and aligned shares of capex remained consistent with the previous reporting period. In category 1.3 Forest management the capex includes investments that support the forest management activities, such as forest land acquisitions and investments in roads and bridges. In category 4.20 Cogeneration of heat/cool and power from bioenergy the capex includes the investments made to bioenergy production at Stora Enso sites. The largest investments relate to Oulu and Heinola production sites in Finland. Opex The total opex covers the maintenance expenses, short-term lease costs, non-capitalised research and development costs and silviculture costs at the Group level. The Taxonomy-eligible opex include the corresponding direct non-capitalised costs related to the economic activities. Compared to 2024, taxonomy-eligible and aligned shares of opex increased slightly to 14% (13%) and 10% (9%) due to higher R&D and environmental remediation costs. In 2025 the following were reported under the EU Taxonomy opex: 1.3 Forest management, the silviculture costs and related research and development costs. 1.4 Conservation forestry, the costs from the conservation operations. 2.4 Remediation of contaminated sites and areas, the expenses related to the environmental remediation work carried out. 3.4 Manufacture of batteries, the pilot plant costs and research and development expenses related to hard carbon innovation. Turnover for the activity is expected within future years. 3.5 Manufacture of energy efficiency equipment for buildings, the expenses related to the share of production that is estimated to end up for doors, windows, roofing and external wall systems is reported. 4.20 Cogeneration of heat/cool from bioenergy, the maintenance salaries, maintenance material and other direct costs related to the day-to-day serving of the asset. Minimum safeguards Minimum safeguards were assessed in Group-level from two angles: by reviewing the company processes for human rights, corruption, taxation and fair competition to determine that the adequate processes and controls are in place, and by investigating that there are no known breaches or violations existing in the parent company, in its subsidiaries or by senior management. The Group considers its processes to be at a robust level and with no violations to meet the alignment with the minimum safeguards. For more information on the Group’s governance, see ESRS G1 Business Conduct. Template 1 Nuclear and fossil gas related activities Row Nuclear energy related activities 1 The undertaking carries out, funds or has exposures to research, development, demonstration and deployment of innovative electricity generation facilities that produce energy from nuclear processes with minimal waste from the fuel cycle. NO 2 The undertaking carries out, funds or has exposures to construction and safe operation of new nuclear installations to produce electricity or process heat, including for the purposes of district heating or industrial processes such as hydrogen production, as well as their safety upgrades, using best available technologies. NO 3 The undertaking carries out, funds or has exposures to safe operation of existing nuclear installations that produce electricity or process heat, including for the purposes of district heating or industrial processes such as hydrogen production from nuclear energy, as well as their safety upgrades. NO1 Fossil gas related activities 4 The undertaking carries out, funds or has exposures to construction or operation of electricity generation facilities that produce electricity using fossil gaseous fuels. NO 5 The undertaking carries out, funds or has exposures to construction, refurbishment, and operation of combined heat/ cool and power generation facilities using fossil gaseous fuels. NO 6 The undertaking carries out, funds or has exposures to construction, refurbishment and operation of heat generation facilities that produce heat/cool using fossil gaseous fuels. NO 1 Stora Enso holds a 16.5% interest in Pohjolan Voima Oyj (PVO). The investment is fair valued through other comprehensive income (FVTOCI) and therefore not in the scope of the Group’s EU Taxonomy reporting. For more information see note 4.4 Equity instruments. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 88 ===== SIDA 89 ===== Proportion of Turnover from products or services associated with Taxonomy-aligned economic activities 2025 Substantial contribution criteria DNSH criteria (‘Does Not Significantly Harm’)EUR million Economic Activities Code Turnover Proportion of turnover year 2025 Climate change mitigation Climate change adaptation Water Pollution Circular Economy Biodiversity Climate change mitigation Climate change adaptation Water Pollution Circular Economy Biodiversity Minimum safeguards Proportion of Taxonomy aligned or eligible turnover year 2024 Category enabling activity Category transitional activity EUR % Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y/N Y/N Y/N Y/N Y/N Y/N Y/N % E T A. TAXONOMY-ELIGIBLE ACTIVITIES A.1. Environmentally sustainable activities (Taxonomy-aligned) Manufacture of energy efficiency equipment for buildings CCM 3.5 430 4.6% Y N N/EL N/EL N/EL N/EL Y Y Y Y Y Y Y 4.3% E Cogeneration of heat/cool and power from bioenergy CCM 4.20 39 0.5% Y N N/EL N/EL N/EL N/EL Y Y Y Y Y Y Y 0.5% Turnover of environmentally sustainable activities (Taxonomy-aligned) (A.1) 469 5.0% 5.0% 4.7% Of which Enabling 430 4.6% 4.6% 4.3% E Of which Transitional T A.2. Taxonomy-Eligible but not environmentally sustainable activities (not Taxonomy-aligned activities) EL; N/EL EL; N/EL EL; N/EL EL; N/EL EL; N/EL EL; N/EL Forest management CCM 1.3 133 1.4% EL EL N/EL N/EL N/EL N/EL 1.5% Cogeneration of heat/cool and power from bioenergy CCM 4.20 3 0.0% EL EL N/EL N/EL N/EL N/EL 0.0% Turnover of Taxonomy-eligible but not environmentally sustainable activities (not Taxonomy-aligned activities) (A.2) 136 1.5% 1.5% 1.6% A.Turnover of Taxonomy eligible activities (A.1+A.2) 605 6.5% 6.5% 6.3% B. TAXONOMY-NON-ELIGIBLE ACTIVITIES Turnover of Taxonomy-non-eligible activities 8,721 93.5% TOTAL 9,326 100% Y – Yes, Taxonomy-eligible and Taxonomy-aligned activity with the relevant environmental objective N – No, Taxonomy-eligible but not Taxonomy-aligned activity with the relevant environmental objective N/EL – Not eligible, Taxonomy non-eligible activity for the relevant environmental objective EL - Taxonomy-eligible activity for the relevant objective Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 89 ===== SIDA 90 ===== Proportion of capex from products or services associated with Taxonomy-aligned economic activities 2025 Substantial contribution criteria DNSH criteria (‘Does Not Significantly Harm’)EUR million Economic Activities Code Capex Proportion of capex year 2025 Climate change mitigation Climate change adaptation Water Pollution Circular Economy Biodiversity Climate change mitigation Climate change adaptation Water Pollution Circular Economy Biodiversity Minimum safeguards Proportion of Taxonomy aligned or eligible capex year 2024 Category enabling activity Category transitional activity EUR % Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y/N Y/N Y/N Y/N Y/N Y/N Y/N % E T A. TAXONOMY-ELIGIBLE ACTIVITIES A.1. Environmentally sustainable activities (Taxonomy-aligned) Manufacture of energy efficiency equipment for buildings CCM 3.5 1 0.1% Y N N/EL N/EL N/EL N/EL Y Y Y Y Y Y Y 0.1% E Cogeneration of heat/cool and power from bioenergy CCM 4.20 45 6.0% Y N N/EL N/EL N/EL N/EL Y Y Y Y Y Y Y 5.8% Capex of environmentally sustainable activities (Taxonomy-aligned) (A.1) 47 6.2% 6.2% 5.9% Of which Enabling 2 0.2% 0.2% 0.1% E Of which Transitional T A.2. Taxonomy-Eligible but not environmentally sustainable activities (not Taxonomy-aligned activities) EL; N/EL EL; N/EL EL; N/EL EL; N/EL EL; N/EL EL; N/EL Forest management CCM 1.3 8 1.1% EL EL N/EL N/EL N/EL N/EL 0.8% Cogeneration of heat/cool and power from bioenergy CCM 4.20 0 0.0% EL EL N/EL N/EL N/EL N/EL 0.0% Capex of Taxonomy-eligible but not environmentally sustainable activities (not Taxonomy-aligned activities) (A.2) 8 1.1% 1.1% 0.8% A.Capex of Taxonomy eligible activities (A.1+A.2) 55 7.4% 7.4% 6.7% B. TAXONOMY-NON-ELIGIBLE ACTIVITIES Capex of Taxonomy-non-eligible activities 691 92.6% TOTAL 746 100% Y – Yes, Taxonomy-eligible and Taxonomy-aligned activity with the relevant environmental objective N – No, Taxonomy-eligible but not Taxonomy-aligned activity with the relevant environmental objective N/EL – Not eligible, Taxonomy non-eligible activity for the relevant environmental objective EL - Taxonomy-eligible activity for the relevant objective Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 90 ===== SIDA 91 ===== Proportion of opex from products or services associated with Taxonomy-aligned economic activities 2025 Substantial contribution criteria DNSH criteria (‘Does Not Significantly Harm’)EUR million Economic Activities Code Opex Proportion of opex year 2025 Climate change mitigation Climate change adaptation Water Pollution Circular Economy Biodiversity Climate change mitigation Climate change adaptation Water Pollution Circular Economy Biodiversity Minimum safeguards Proportion of Taxonomy aligned or eligible opex year 2024 Category enabling activity Category transitional activity EUR % Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y; N; N/EL Y/N Y/N Y/N Y/N Y/N Y/N Y/N E T A. TAXONOMY-ELIGIBLE ACTIVITIES A.1. Environmentally sustainable activities (Taxonomy-aligned) Remediation of contaminated sites and areas PPC 2.4 4 0.6% N/EL N/EL N/EL Y N/EL N/EL Y Y Y Y Y Y Y 0.3% Manufacture of batteries CCM 3.4 19 2.7% Y N N/EL N/EL N/EL N/EL Y Y Y Y Y Y Y 2.1% E Manufacture of energy efficiency equipment for buildings CCM 3.5 17 2.5% Y N N/EL N/EL N/EL N/EL Y Y Y Y Y Y Y 2.4% E Cogeneration of heat/cool and power from bioenergy CCM 4.20 27 4.0% Y N N/EL N/EL N/EL N/EL Y Y Y Y Y Y Y 4.3% Opex of environmentally sustainable activities (Taxonomy-aligned) (A.1) 68 9.8% 9.2% 0.6 % 9.1% Of which Enabling 36 5.2% 5.2% 4.5% E Of which Transitional T A.2. Taxonomy-Eligible but not environmentally sustainable activities (not Taxonomy-aligned activities) EL; N/EL EL; N/EL EL; N/EL EL; N/EL EL; N/EL EL; N/EL Forest management CCM 1.3 28 4.1% EL EL N/EL N/EL N/EL N/EL 3.2% Conservation forestry CCM 1.4 1 0.1% EL EL N/EL N/EL N/EL N/EL 0.1% Remediation of contaminated sites and areas PPC 2.4 2 0.4% N/EL N/EL N/EL EL N/EL N/EL 0.1% Cogeneration of heat/cool and power from bioenergy CCM 4.20 1 0.1% EL EL N/EL N/EL N/EL N/EL 0.0% Opex of Taxonomy-eligible but not environmentally sustainable activities (not Taxonomy-aligned activities) (A.2) 32 4.6% 4.3% 0.4% 3.4% A.Opex of Taxonomy eligible activities (A.1+A.2) 100 14.4% 13.4% 1.0% 12.5% B. TAXONOMY-NON-ELIGIBLE ACTIVITIES Opex of Taxonomy-non-eligible activities 592 85.6% TOTAL 692 100% Y – Yes, Taxonomy-eligible and Taxonomy-aligned activity with the relevant environmental objective N – No, Taxonomy-eligible but not Taxonomy-aligned activity with the relevant environmental objective N/EL – Not eligible, Taxonomy non-eligible activity for the relevant environmental objective EL - Taxonomy-eligible activity for the relevant objective Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 91 ===== SIDA 92 ===== ESRS E1 Climate change Transition plan for climate change mitigation (E1-1) In February 2026, Stora Enso published a new climate resilience plan to ensure that amidst rapid advances in science, technology, and changing regulatory frameworks, its strategy and business model are compatible with the transition to a sustainable economy and the 1.5 degree goal of the Paris Agreement. The resilience plan is approved by the Board of Directors. Stora Enso’s climate change mitigation actions are guided by its Policy for Energy and Climate Change as well as its climate targets. These targets are aligned with the Science Based Targets initiative (SBTi) 1.5-degree pathway and the Paris Agreement’s 1.5-degree goal, as described in ESRS E1-4. The actions and decarbonisation levers for climate change mitigation in the Group’s own operations include enhancements in energy efficiency, fuel switches, investments in electrification, and the use of renewable energy. For upstream and downstream value chain, Stora Enso’s work focuses on four levers to decarbonise purchased goods and services, fuel and energy-related activities, upstream transportation and distribution, and processing of sold products. The actions and levers are further described in ESRS E1-3. Key investments related to climate change mitigation actions are disclosed in ESRS E1-3. The resilience plan aligns with the Group’s strategy, and incorporates climate- related scenario analysis, which have been used to inform the strategy. Some of the decarbonisation levers link directly to the Group’s product portfolio, placing the resilience plan at the core of the business model. The climate mitigation actions are included in the financial planning as described in ESRS E1-3. At the end of 2025, Scope 1 and 2 CO2eq emissions totalled 1.03 million tonnes or -61% less, and Scope 3 emissions 4.63 million tonnes or -38% less than in the base year 2019. Stora Enso does not consider any of its emissions unavoidable (locked-in), but acknowledges that some assets and products have emissions that are currently economically and technologically harder to abate. Therefore, future investments and new technology are essential to achieve the climate targets. The Group intends to continue investments in low-carbon and energy-efficient solutions, particularly to reduce the use of fossil fuels, and is committed to phasing out coal. Actions and investments are described in ESRS E1-3 and presented in the graph ‘Achieved and expected reductions’ in ESRS E1-4. Stora Enso reports according to the EU Taxonomy. The forest industry is not central to current legislation, limiting Stora Enso’s relevant economic activities for reporting. In 2025, Stora Enso’s taxonomy-aligned capex was EUR 47 (64) million, see section EU Taxonomy. Stora Enso is not excluded from the EU-Paris aligned benchmark. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 92 Material impacts, risks and opportunities (ESRS 2 SBM-3) Description Impact, risk, or opportunity Time horizon Location in the value chain Related sub-topic or sub-sub-topic Transition risk Physical risk Positive impact on climate through forest carbon sequestration, products substituting fossil-based alternatives, and carbon stored in products. Actual positive impact Short, medium, and long term Own operations, joint operations Climate change mitigation Production sites emit greenhouse gases and use energy-intensive processes, both of which directly impact climate change. Actual negative impact Short, medium, and long term Own operations; joint operations Climate change mitigation; Energy Indirect impact on climate change due to greenhouse gas emissions resulting from upstream and downstream value chain activities. Actual negative impact Short, medium, and long term Joint operations, Upstream and downstream value chain Climate change mitigation Operations generate biogenic emissions, which are treated as carbon neutral. Stora Enso recognises the risk of a possible change in the accounting of these emissions, which would impact the Group’s path towards climate neutrality and product lifecycle assessments. Risk Medium and long term Own operations, joint operations, upstream and downstream value chain Climate change mitigation x Uncertainty in reaching the net zero target by 2040: for Scope 1 and 2 emissions, adequate investments and new technology are required, while for Scope 3 emissions, the lack of direct control over value chain emissions may create challenges in achieving reduction targets. Inability to meet the targets may lead to possible damage to Stora Enso’s reputation and brand, which may result in a loss of investor and customer confidence leading to higher cost of capital and decreased revenues. Risk Medium and long term Own operations, upstream and downstream value chain Climate change mitigation x Stora Enso’s scenario analysis recognises that long-term (25–30 years) changes in precipitation patterns, periods of drought, frequent extreme weather events, and higher average temperatures that increase the risk of forest fires and insect outbreaks, could cause damage to operations, forests, and tree plantations. In northern regions, milder winters may also impact the harvesting and transportation of wood and related costs. More frequent extreme weather events also increase the risk of disruptions in the production, logistics, and supply of raw materials and energy. Risk Long term Own operations, joint operations, upstream value chain Climate change adaptation x Opportunity due to high energy self-sufficiency, which reduces the Group’s exposure to external cost instability and market disruptions. With access to renewable biomass and fossil-free electricity, Stora Enso is well-positioned to contribute to the green transition and a low-carbon economy. Opportunity Short, medium, and long term Own operations Energy Opportunity in sustainable forest management to enhance the resilience of forest ecosystems, and the potential for changing climate to increase tree growth and species distribution, particularly in northern latitudes. Opportunity Medium and long term Own operations, joint operations, upstream value chain Climate change mitigation Opportunities related to climate change resilience are described in ESRS E3, E4, and E5. ===== SIDA 93 ===== E1 disclosure requirement related to ESRS 2 SBM-3 Stora Enso utilises scenarios to assess climate change impacts and has tested the resilience of its strategy and business model in relation to climate change through multiple resilience analyses conducted over the past years. Resilience analyses have been conducted for Stora Enso’s own operations, covering production assets in Sweden, Finland, Poland, and Belgium, as well as for the forest assets in Sweden. In addition, resilience analyses have been conducted for Stora Enso’s joint operations in Brazil and Uruguay and the plantations in South America. The scenario analyses for the operational assets for Stora Enso’s own operations and upstream operations (joint operations) were conducted as desktop studies by reviewing location-based historical weather data against five different climate scenarios (SSP1-1.9, SSP5-8.5). For forest assets in Sweden, the study was done as a literature review by a third-party. The analysis for the upstream value chain covering plantations in South America was also conducted by a third party. The time horizon on materiality was set to 2040, with an overall horizon extending to 2100. In 2025, Stora Enso updated its climate resilience plan, incorporating the scenarios outlined earlier together with the latest emission forecasts and market insights. The anticipated financial effects were considered in investment estimates and planning, alongside broader business implications such as potential production growth. Stora Enso assumes that the transition to a lower-carbon and resilient economy will affect the Group through emission reductions, regulations, and the need to adapt operations, for example, by electrification. The results of the resilience analysis show that operational assets in Sweden and Finland have endured similar weather conditions in the past. Stora Enso acknowledges that weather extremes will become more frequent, but there is little evidence to suggest that those would have a material impact on the ability to operate assets before 2040. Assets located in continental Europe, are at a higher risk of climate hazards compared to those in the Nordics. However, no material impact was identified. The results of the resilience analysis for forest assets in Sweden were inconclusive. A warmer climate enhances forest growth, but at the same time, more frequent storms, drought, and pest damage may negatively affect growth. Based on the outcome, there are both risks and opportunities in the changing climate. There is uncertainty in the resilience analysis, as recent climate development suggests that expected time horizons for impacts in different scenarios might be shorter than anticipated. In 2024, the EU’s climate service reported that for the first time, global warming had exceeded 1.5°C over the course of an entire year. Stora Enso has also conducted a business impact scenario that identified climate-related transition opportunity. The results concluded that the overall transition to a low carbon, circular economy is aligned with the Group’s strategy. Based on the resilience analysis, Stora Enso has the ability to adjust or adapt its strategy to respond to climate change in the short, medium, and long term. Climate-related transition risks relate to the Group’s capability to reduce its emissions across the value chain, and also its capability to position its business offering to support the global transition to a low- carbon, circular economy. Stora Enso’s operations and value chain benefit from their wide geographical distribution, as it is unlikely that all locations would be impacted simultaneously. Policies related to climate change mitigation and adaptation (E1-2) The minimum requirement is that all policies and guidelines are to be reviewed at least once every two years. Each policy owner shall ensure that the documents under their responsibility are reviewed and updated within the defined time frame. Policy for Energy and Climate Change The policy outlines the ambition for combatting climate change through objectives across products, industrial operations, and the value chain. The policy addresses the management of negative impacts related to GHG emissions generated from Stora Enso’s own operations by continuously improving energy efficiency and increasing the deployment of renewable energy through a higher share of biomass. The policy also promotes working with suppliers, customers, and partners to decarbonise the value chain, thereby aiming to mitigate negative impacts resulting from emissions generated within the value chain. In addition, the policy includes a commitment to collaborating with customers and stakeholders to substitute non-renewable materials and to sustainable forest management practices. The efforts contribute to positive climate impacts through forest carbon sequestration, use of products as substitutes for fossil-based alternatives, and carbon stored in wood-based products. The policy applies to Stora Enso’s own operations, and the EVP, Strategy and Sustainability, is accountable for ensuring its implementation. Environmental Guidelines The guidelines address topics related to environmental management and circularity, energy and climate change, pollution, water, forests, plantations, and land use. The guidelines require that all of Stora Enso’s production units implement and maintain a third-party certified environmental management system. Third-party certified management systems (ISO 14001 and ISO 50001) help improve environmental performance and energy efficiency. In relation to energy and climate change, the guidelines address both the negative and positive impacts outlined in the Policy for Energy and Climate Change. The scope of the guidelines covers Stora Enso’s own operations, and the EVP, Strategy and Sustainability, is accountable for ensuring their implementation. Supplier Code of Conduct (SCoC) The SCoC outlines minimum standards for suppliers in addition to applicable laws and regulations. The policy lists objectives for responsible business practices, occupational health and safety, human and labour rights, supporting and engaging with communities, and protecting the environment. It requires suppliers to actively monitor, report, and work to reduce GHG emissions from their own operations and value chain. The supplier must allow Stora Enso, or a third party authorised by Stora Enso, to verify compliance with the requirements of this SCoC through dialogue, disclosure of information or, if considered necessary by Stora Enso, an audit of the supplier’s operations. The policy also addresses managing the negative impacts resulting from GHG emissions in the Group’s value chain. The scope of the policy covers all Stora Enso’s business activities and operations globally. Accountability for ensuring the implementation of the SCoC lies with the Sourcing & Logistics Leadership Team. The SCoC is provided to suppliers during the pre-qualification process, where they are required to commit to adhering to it. Actions and resources in relation to climate change policies (E1-3) Stora Enso’s climate change mitigation and adaptation actions extend across its own operations, as well as its upstream and downstream value chain, and are aligned with the Paris Agreement and SBTi’s 1.5-degree pathway. Climate change mitigation in the Group’s own operations The action plan consists of two decarbonisation levers, described below, which contribute to Stora Enso’s target of reducing GHG emissions for Scope 1 and 2 by 50% by 2030 from the 2019 baseline. The plan also supports the achievement of objectives outlined in the Policy for Energy and Climate Change and the Environmental Guidelines on climate change Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 93 ===== SIDA 94 ===== mitigation, as well as managing negative impacts resulting from the GHG emissions generated by the Group’s operations. The action plan covers the Group’s own operations and the time horizon spans from short to long term. 1) Decarbonisation lever: energy efficiency and investments into electrification Stora Enso focuses on continuously improving energy efficiency at its production sites through targeted measures. In 2025, the Group supported energy-efficiency investments totalling approximately EUR 25.8 (18.8) million, reducing heat, fuel, and electricity consumption, and contributing to a reduction in the total carbon emissions. On average, these investments have a payback period of two years. In the Financial Statements, these investments are included in the note 4.1 Intangible assets, property, plant and equipment and right-of-use assets (under the corresponding ‘Additions’ rows). To reduce GHG emissions in energy-intensive production processes, Stora Enso has invested in e-boilers as alternatives to fossil-based energy sources and to enhance operational efficiency. For instance, in Lahti, Finland, two new electric boilers became fully operational in early 2025, a i m i n g t o r e d u c e t h e s i t e ’ s C O ₂ e m i s s i o n s b y u p t o 7 0 % c o m p a r e d t o t h e 2019 baseline. Furthermore, Stora Enso is investing in vehicle electrification. Stora Enso applies the ISO 50001 standard to improve energy efficiency across its operations by implementing an Energy Management System. The standard supports continuous improvement through energy-saving objectives and targets. By the end of 2025, approximately 99% of the Group’s production sites were covered by ISO 50001. By the end of 2025, the emission reduction achieved for this decarbonisation lever was 0.05 million tonnes from the 2019 base year. The expected emission reduction from 2025 to 2030 is 0.01 million tonnes. See also progress against the Group’s energy efficiency target (ESRS E1-4). 2) Decarbonisation lever: fuel switches and use of renewable and nuclear energy To reduce the carbon intensity of its industrial operations, Stora Enso promotes the use of various forms of low carbon electricity and heat, including energy sources such as nuclear, wind, solar, and bioenergy. The Group’s operations largely utilise renewable biomass fuels from forest and process side streams. Fuel switches are implemented in both production processes and transportation. To support its decarbonisation targets, Stora Enso purchases Guarantees of Origin to ensure that electricity has been generated from renewable or nuclear energy sources, with lower greenhouse gas emission factors. Examples of measures taken at the mills during the reporting year: • As part of the Oulu conversion project in Finland, a new bio boiler was built to meet the steam needs of the new cartonboard machine. It was designed in accordance with BAT (Best Available Techniques) and BREF (Best Available Techniques Reference Documents) requirements to minimise environmental impact. • In 2025, a new bio oil tank became fully operational at the Skoghall mill in Sweden, replacing fossil oil and enabling a projected 38% reduction in fossil emissions - approximately 25,000 tonnes of CO₂ annually. • Renewal of the energy set-up and process equipment at the Heinola fluting site, Finland, was carried out to replace majority of the remaining fossil-based fuels with renewable bioenergy. The expected GHG reduction is over 90%. The project was completed in the latter half of 2025. In 2025, the emission reduction achieved for this decarbonisation lever was 0.95 million tonnes. The expected emission reduction from 2025 to 2030 is 0.35 million tonnes. In addition to the decarbonisation levers described above, site and production line closures, aligned with Stora Enso’s business model and strategy, also impact the achieved reduction. Climate change mitigation in the value chain Stora Enso aims to reduce Scope 3 emissions in alignment with the objectives of the Policy for Energy and Climate Change, the Environmental Guidelines, and the Supplier Code of Conduct to mitigate negative impacts on climate change resulting from GHG emissions in the Group’s upstream and downstream value chain. The action plan for climate change mitigation in the value chain consists of four decarbonisation levers, covering Stora Enso’s material Scope 3 categories, aiming to reduce value chain emission in line with target to reach 50% reduction in Scope 3 emissions by 2030 from the 2019 baseline. The time horizon of this action plan spans from short to long term and covers the Group’s value chain. 1) Decarbonisation of purchased goods and services Stora Enso continuously optimises product features, recipes, and design for resource efficiency and carbon intensity. The focus is on supplier s u b - c a t e g o r i e s w i t h s i g n i f i c a n t e m i s s i o n i m p a c t s . T h i s i n c l u d e s w o r k i n g with raw material suppliers to improve efficiency and lower carbon intensity throughout the value chain. An example from the reporting year is hosting a supplier event with key chemical partners to support the reduction of GHG emissions, facilitate adaptation to evolving regulations, and promote the exchange of actionable data. By the end of 2025, the emission reduction achieved for this decarbonisation lever was 0.72 million tonnes from the 2019 baseline. The expected emission increase from 2025 to 2030 is 0.14 million tonnes. 2) Decarbonisation of fuel and energy-related activities The decarbonisation levers for Scope 1 and 2 also reduce upstream emissions from fuel and energy related activities. By the end of 2025, the emission reduction achieved for this decarbonisation lever was 0.35 million tonnes from the 2019 baseline. The expected emission reduction from 2025 to 2030 is 0.07 million tonnes. 3) Decarbonisation of upstream transportation and distribution S t o r a E n s o f o c u s e s o n s u p p l i e r s u b - c a t e g o r i e s w i t h s i g n i f i c a n t e m i s s i o n impacts. This includes working with logistics partners to improve efficiency and lower carbon intensity of transportation. An example from the reporting year is participation in the TREE project, coordinated by the Forestry Research Institute of Sweden, which has been testing six electric heavy-duty vehicles to electrify forestry transport in Sweden. By the end of 2025, the emission reduction achieved for this decarbonisation lever was 0.27 million tonnes from the 2019 baseline. The expected emission increase from 2025 to 2030 is 0.09 million tonnes. 4) Decarbonisation of processing of sold products Customer actions to reduce emissions serve as a decarbonisation lever, with Stora Enso maintaining active dialogue on customers’ climate ambitions and targets to gain visibility into these opportunities. In addition, the Group reviews decarbonisation opportunities in new markets and end uses. By the end of 2025, the emission reduction achieved for this decarbonisation lever was 1.46 million tonnes from the 2019 baseline. The expected emission reduction from 2025 to 2030 is 0.15 million tonnes. Other impacts to Scope 3 reduction In addition to the above decarbonisation levers, continuous enhancement of data collection supports identifying mitigation actions. Scope 3 accounting differs inherently from Scope 1 and 2, as it involves activities beyond a company’s direct control and is still a developing field partly due to limited primary data availability. Accordingly, Stora Enso aims to continuously improve its Scope 3 data collection and reporting processes, focusing on improving the granularity of data down to the production unit level. This will allow for a better-informed baseline and support data- driven development actions. The scope of the activities covered by the automation project spans the Group’s entire value chain. Furthermore, business growth, site and production line closures, aligned with the Group's business model and strategy, impact the achieved reduction outcome. The impacts are reflected across all decarbonisation levers. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 94 ===== SIDA 95 ===== Climate change adaptation types Stora Enso’s objective and approach to climate change adaption are included as part of the Environmental Guidelines. To address the policy objective and to mitigate the increasing risks posed by climate-related hazards, Stora Enso implements nature-based adaptation solutions. The scope of the action covers the Group’s own operations and upstream value chain, with a long-term time horizon. Examples of this action include: • Increasing mixed forests, and promoting sustainable forest management and harvesting practices, see ESRS E4. • Enforcing diversification in wood sourcing. • Enhancing materials efficiency, see ESRS E5. • Monitoring water risk areas and taking relevant action, see ESRS E3. Addressing opportunities and positive impacts The two key actions to address the positive impact and opportunity on climate change mitigation, as well as the opportunity to increase forest resilience and growth, are described below. The third key action addresses the opportunity on energy self-sufficiency. These long-term actions contribute to the achievement of the objectives outlined in the Policy for Energy and Climate Change and the Environmental Guidelines. 1) Promotion of sustainable forest management practices in Stora Enso’s own and managed forests to increase the resilience of forest ecosystems and improve forest sequestration. In 2025, the three-year average of annual carbon sequestration in the Group’s owned or leased productive forest lands was 3.8 (4.3) million tonnes of CO2. See ESRS E1-7. 2) The Group’s innovation and product development focuses on fiber- based, renewable products that substitute fossil-based alternatives. In 2025, the substitution effect amounted to 14.6 (13.5) million tonnes of CO2. In addition, the Groups’s wood-based products stored carbon amounting to 2.7 million tonnes of CO2. See ESRS E1-7. Recent key investments include: • New consumer packaging board line at the Oulu site in Finland started production ramp-up in 2025 and is expected to reach full capacity during 2027. • In 2025, Stora Enso’s total spend on innovation, research and development was EUR 69 (78) million. 3) By securing and enhancing energy self-sufficiency, Stora Enso aims to mitigate exposure to external cost volatility and market disruptions. The action consists of long-term contracts to manage energy supply, direct market access via energy exchanges, combined heat and power production at production units, and shareholding in the Finnish energy company Pohjolan Voima Oyj. The Group also places increased emphasis on leveraging its electricity generation capabilities and electricity demand flexibility. In 2025, Stora Enso’s total energy self-sufficiency was 74% (72%). Current and future resources The Group’s EU Taxonomy aligned Capex related to climate change mitigation was EUR 47 (64) million and Opex EUR 64 (66) million, see further details in the section EU Taxonomy. The difference between the ESRS E1 and EU Taxonomy disclosed Capex and Opex is due to Stora Enso’s central business areas not being addressed by the current scope of the EU Taxonomy. Stora Enso acknowledges that future investments and new technology are required to reach its target of net-zero by 2040 and intends to continue investing in low-carbon and energy-efficient solutions. Targets related to climate change mitigation and adaptation (E1-4) Climate change mitigation In 2017, Stora Enso established a science-based target to reduce its greenhouse gas (GHG) emissions and achieved this target nine years ahead of schedule. In 2021, Stora Enso raised its ambition to align with the 1.5-degree scenario. The targets have been approved by the Science Based Targets initiative (SBTi) and are aligned with the Group’s Energy and Climate Change Policy. Target Scope Baseline year and value 2025 2024 Scope 1 & 2: -50% reduction by 2030 Own operations 2 0 1 9 : 2 . 6 2 C O ₂ e million tonnes -61 % -53 % Scope 3: -50% reduction by 2030 Value chain 2 0 1 9 : 7 . 4 3 C O ₂ e million tonnes -38 % -39 % Compared to 2024, the decrease in Scope 1 and 2 emissions is primarily a result of reduction measures, such as fuel switches. Scope 3 performance, compared to previous year, was affected by increased production. The decarbonisation levers and their contributions to reductions from the baseline year are shown in the graphs below. For Scope 1 and 2, new technologies and other investments are required to achieve targets. For Scope 3, the estimated contributions depend on additional future actions to reach the target. The pace and effectiveness of future decarbonisation will also be influenced by the availability of low-carbon energy, infrastructure development, and market adoption of new solutions. The presented forecasts on future growth and expected reductions are based on various assumptions and estimates that are believed to be reasonable, though actual result and timing could differ from these. The estimates, judgments and assumptions are reviewed regularly and updated when deemed necessary. The expected reductions by 2030 are rounded to the nearest 5 percentage point. There is an estimation uncertainty of +/-5% in the forecast. In 2023, Stora Enso reinforced its climate commitment by joining The Climate Pledge initiative, aiming for net zero carbon emissions by 2040, across all three Scope categories. The 2019 baseline year applies to both the 2030 and 2040 targets. For setting the targets, Stora Enso uses a publicly available science-based target-setting method for Scope 1, 2 and 3 emissions called the Absolute Contraction Approach. Since the targets are set for absolute emission reductions, possible future developments, such as changes in sales volumes or shifts in customer demand, will not alter the targets. GHG removals, carbon credits, or avoided emissions are not considered as means to achieve the targets. See accounting principles for GHG emissions in ESRS E1-6. Stakeholders, other than SBTi and Climate Pledge, have not been included in the target setting process. Energy Stora Enso has set an energy efficiency target as part of the Group’s decarbonisation pathway and as a means to reduce negative impacts generated by energy use. For 2025, the target was updated to 1.5% annual energy saving by 2030 (1.1% in 2024), in alignment with the EU’s energy efficiency target. Target Scope Baseline year and value 2025 2024 Projected annual energy saving of -1.5% by 2030 (MWh saved/MWh total energy used, electricity, heat, and fuels) Own operations Annual target -2.1 % -1.6 % In 2025, Stora Enso exceeded its target, achieved mainly through an increased focus on operational efficiency. Accounting principles In addition to operational changes, the projected energy savings include savings from the investments for which the reporting year marks the first year of impact. Energy savings are reported as a percentage reduction compared to total energy consumption for the year, without considering efficiency investments. The target excludes packaging converting units and joint operations. The target value is applied for each year. The target was established with input from internal subject matter experts and covers the Packaging Materials, Biomaterials, and Wood Products segments. The target is in line with the Policy for Energy and Climate Change and supports the achievement of the Scope 1 and 2 Science Based Targets. The target is in line with EU’s energy efficiency target. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 95 ===== SIDA 96 ===== 2.62 0.03 -0.05 -0.95 -0.63 1.03 0.14 -0.01 -0.35 1.31 Base year 2019 Production increase Energy efficiency and investments into electrification Fuel switches and use of renewable energy Impacts from site and production line closures and conversions 2025 emissions Business impact Energy efficiency and investments into electrification Fuel switches and use of renewable energy 2030 target -50% from 2019 2040 net zero target 0 1 2 3 Energy consumption and mix (E1-5) Accounting principles The energy figures cover all production units. Aligned with the Financial Statements, the figures include the Group’s joint operations according to the ownership share (50%). Energy consumption in offices is included in the figures based on estimates. Local factors are taken into account at the units when calculating the energy content of the fuels used. Stora Enso applies a conservative approach in accordance with ESRS when distinguishing between renewable and non-renewable energy sources. The Group classifies energy as renewable or nuclear-based only if the origin of the purchased energy is clearly defined in contractual arrangements with its suppliers, or if Guarantees of Origin are cancelled for the Group’s consumption and are in line with GHG Protocol requirements. If the origin is not known, the source is classified as fossil. Some production units that purchase electricity from the grid have estimated their energy consumption, as invoices from the energy provider were not available at year-end. These estimates do not have a material impact on the Group’s total energy consumption figure. Stora Enso’s business activities fall within high climate impact sectors: Agriculture (Sector: Forestry, code AFO) and Manufacturing (Sector: Pulp, Paper & Wood products, code MPW) or alternatively NACE 02 (Forestry and logging), NACE 16 (Manufacture of products of wood), and NACE 17 (Manufacture of pulp, paper and paperboard). Therefore, the Group’s total sales as reported in the Financial Statements (Consolidated income statement) is used to determine energy intensity. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 96 Achieved and expected GHG reductions within the value chain CO2eq, million tonnes Achieved and planned GHG reductions within the Group’s own operations CO2eq, million tonnes Achieved reductions in own operations by 2025 Planned reductions in own operations 7.43 -0.72 -0.35 -0.27 -1.46 4.63 0.14 -0.07 0.09 -0.16 3.72 Base year 2019 Purchased goods and services Fuel and energy- related activities Upstream transportation and distribution Processing of sold products 2025 emissions Purchased goods and services Fuel and energy- related activities Upstream transportation and distribution Processing of sold products 2030 target -50% from 2019 2040 net zero target 0 1 2 3 4 5 6 7 8 Achieved reductions within the value chain by 2025 Expected impacts within the value chain1 1 For Scope 3, the estimated contributions depend on additional future actions to reach the target. The pace and effectiveness of future decarbonisation will also be influenced by the availability of low-carbon energy, infrastructure development, and market adoption of new solutions. ===== SIDA 97 ===== Energy consumption and mix, TWh 2025 2024 Fuel consumption from coal and coal products 1.0 1.1 Fuel consumption from crude oil and petroleum products 0.7 1.2 Fuel consumption from natural gas 0.8 0.5 Fuel consumption from other fossil sources 1.1 1.3 Consumption of purchased or acquired electricity, heat, steam, and cooling from fossil sources 0.2 0.3 Total fossil energy consumption 3.8 4.4 Share of fossil sources in total energy consumption, % 9% 11% Consumption from nuclear sources 4.3 3.9 Share of consumption from nuclear sources in total energy consumption, % 10% 9% Fuel consumption from renewable sources 33.8 33.3 Consumption of purchased or acquired electricity, heat, steam, and cooling from renewable sources 0.8 0.6 The consumption of self-generated non-fuel renewable energy 0.0 0.0 Total renewable energy consumption 34.6 33.8 Share of renewable sources in total energy consumption, % 81% 80% Total energy consumption 42.7 42.2 Energy intensity ratio 2025 2024 Total energy consumption from activities in high climate impact sectors, TWh 42.7 42.2 Energy intensity, MWh/EUR million 4,577 4,658 For energy balance, the figures encompass the Group’s own energy production. Electricity received at cost-based principle from Pohjolan Voima Oyj – where Stora Enso is a minority shareholder with a 16.5% (16.1%) ownership stake – is reported as its own line and included in own electricity generation due to Mankala principle. For additional information, see Financial Statements, note 4.4 Equity instruments. Stora Enso’s energy balance contains also external energy sales, which are partly EU taxonomy-eligible. For more information, see EU Taxonomy. Energy production, TWh 2025 2024 Renewable 29.8 29.5 Non-renewable1 2.6 3.0 PVO shareholding 2.5 2.5 Renewable 0.4 0.4 Nuclear 2.1 2.1 Total energy production1 34.9 35.0 1 Comparative figure revised due to minor error. Gross Scopes 1, 2, 3 and Total GHG emissions (E1-6) Stora Enso’s carbon footprint, following the GHG Protocol’s principle of operational control Accounting principles In its GHG accounting, Stora Enso follows the three standards provided by the Greenhouse Gas Protocol of the World Resources Institute and the World Business Council for Sustainable Development: the GHG Corporate Accounting and Reporting Standard, the GHG Protocol Scope 2 Guidance, and the Corporate Value Chain (Scope 3) Accounting and Reporting Standard. Stora Enso uses the operational control approach to consolidate GHG emission figures. The targets for reducing GHG emissions are reported as a percentage change from the baseline, which is updated annually to reflect the current company structure. The Group’s climate targets, approved by the Science-Based Targets initiative and presented in ESRS E1-4, follow the GHG Protocol. The CO2 factors used for purchased energy (Scope 2) largely follow the market-based methodology, which means that almost all production sites apply CO2 factors provided by their energy suppliers. Carbon footprint 2019–2025 according to GHG Protocol (Follows the GHG Protocol’s principle of operational control. Scope 1 and 2 emissions covered by reasonable assurance.)1,2 Fossil CO2 equivalent, million tonnes Trend 2019 2020 2021 2022 2023 2024 2025 2019-2025 Scope 1 2.27 2.08 2.13 1.79 1.46 1.18 0.99 -57% Scope 2 0.35 0.19 0.11 0.10 0.07 0.06 0.04 -88% Scope 3 7.43 7.16 7.54 5.59 4.86 4.56 4.63 -38% Total 10.06 9.44 9.78 7.48 6.39 5.80 5.66 -44% 1 Scope 1+2 emissions covers Stora Enso’s production units. Includes the trading of Guarantees of Origin for electricity. Joint operations are included in Scope 3 emissions. 2 All comparative figures are revised due to structural changes or additional data after the previous report. Stora Enso’s carbon footprint, following the financial consolidation scope (aligned with ESRS) Accounting principles To align with the ESRS requirements, Stora Enso’s disaggregated GHG emissions follow the financial consolidation scope. Hence, the joint operations are consolidated line by line into Scope 1, 2, and 3 emissions according to the ownership share (50%). This consolidation approach is aligned with the Financial Statements but differs from GHG Protocol, where joint operations are classified as part of Scope 3. Scope 1 and 2 emissions include direct and indirect GHG emissions, calculated as fossil CO2 equivalents (CO2eq). In addition to CO2, other relevant GHG emissions for Stora Enso are methane (CH4) and nitrous oxide (N2O), which are generated when using fossil and biomass fuels in the units’ power boilers. These gases are converted to CO2eq using their respective global warming potential based on the fourth assessment report of the Intergovernmental Panel on Climate Change (IPCC), or fuel-specific CO2 emission factors based on site analysis. The sources of Stora Enso’s Scope 1 factors are 2006 IPCC Guidelines for National Greenhouse Gas inventories (Chapter 2: Stationary Combustion) and, for biogenic emissions, Fuel classification 2018 from Statistics Finland. HFCs and SF6 are not material for Stora Enso’s carbon accounting. In 2025, 49% (54%) of Scope 1 emissions were from regulated emission trading schemes. For additional information on emissions covered by trading schemes, see Financial Statements, note 4.5 Emission rights and other non-current assets. In 2025, biogenic emissions related to Scope 1 amounted to 11.98 (11.86) million tCO2eq. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 97 ===== SIDA 98 ===== Scope 2 GHG emissions are calculated based on purchased electricity and heat. The CO2 emission factors used for purchased energy largely follow the market-based methodology, meaning that almost all units apply CO2 factors provided by their energy suppliers. When these are not available, the Group applies a country-specific residual mix factor. In the absence of residual mix factors, the most recent location-based factors provided by the International Energy Agency (IEA) are used. The applied factors do not separate the percentage of biogenic CO2. In Scope 2 market-based accounting, approximately 96% of purchased energy is covered by contractual instruments. The allocation between bundled and unbundled instruments is based on estimates, with approximately 96% of the energy associated with bundled instruments and 4% with unbundled instruments. For both categories, the contractual instruments primarily consist of Guarantees of Origin for electricity or Renewable Energy Certificates. Scope 3 emissions include fossil CO2eq emissions from other sources in the upstream and downstream value chain of all production units. Stora Enso follows the WBCSD guidance for Scope 3, which defines 15 potential categories of emissions. The Group applies an activity-based methodology in its Scope 3 accounting. This means that emissions are estimated by multiplying the activity data with the relevant carbon emission factors. When determining which categories to include in Scope 3 emissions reporting, the Group assesses the materiality of each category based on the significance of its associated activities to total emissions. Categories considered immaterial or not relevant to the Group’s business operations may be excluded from reporting. Material emission categories included in Scope 3 emissions are reviewed whenever new information on data level or regarding accounting methodology becomes available. When primary data is not available for the carbon emission factors of Stora Enso’s activity data, the Group utilises secondary sources. In the 2025 reporting, the Scope 3 categories, as identified by the GHG Protocol, included the below categories. Scope 3 category Method Purchased goods and services (category 1) Stora Enso utilises raw material volumes to calculate category 1 emissions. Primary data, such as LCAs, are preferred. In the absence of primary data, selected secondary sources, such as EcoInvent and Metsäteho, are utilised. Fuel and energy related activities (category 3) Stora Enso utilises energy volumes when calculating category 3 emissions. In the absence of primary data, selected secondary sources, such as EcoInvent, are utilised. Upstream transportation and distribution (category 4) Stora Enso utilises transportation distances, volumes, and modes to calculate category 4 emissions. In the absence of primary data, selected secondary sources, such as The Network for Transport Measures (NTM) is utilised. Processing of sold products (category 10) Stora Enso utilises the volumes of product categories to calculate category 10 emissions. Some of the data is obtained from primary sources. When primary data is not available, selected secondary sources, such as The Alliance for Beverage Cartons and the Environment (ACE), the European Federation of Corrugated Board Manufacturers (FEFCO), and proxy data are used. The excluded Scope 3 categories and the explanations for exclusion are provided in the following table. The share of primary data used based on the volume of emissions is approximately 12%. Biogenic emissions that occur in the upstream and downstream value chain emissions are not calculated. Scope 3 category Explanation for exclusion Capital goods (category 2) LCA studies show that capital goods account for less than 1% o f C O ₂ e m i s s i o n s i n t h e p a p e r i n d u s t r y , m a k i n g t h i s c a t e g o r y immaterial. Waste generated in operations (category 5) Most of the waste and residuals from the Group’s operations are treated internally and disposed of in company-owned landfills. Consequently, the majority of emissions from waste management are accounted for under Scope 1 as internal transportation. Business travelling (category 6) Impact on emissions deemed immaterial (less than 1%). Employee commuting (category 7) Impact on emissions deemed immaterial (less than 1%). Upstream leased assets (category 8) Not applicable. All operating units under the Group’s operational control (with less than 50% shareholding) are included in Scope 1 and 2. Downstream transportation and distribution (category 9) Not assessed. An assessment of transportation by Stora Enso’s customers and their customers is ongoing. Use of sold products (category 11) Not relevant. Relevant only for products that directly consume energy during use (engines), fuels and feedstocks (natural gas) and products that contain or form GHG that are emitted during use (fire extinguisher). End-of-life treatment of sold products (category 12) Immaterial. Most of the Group’s products are recycled or i n c i n e r a t e d f o r e n e r g y r e c o v e r y , w i t h e n d - o f - l i f e e m i s s i o n s estimated at less than 1% of total Scope 3. Downstream leased assets (category 13) Not applicable. Stora Enso does not have downstream leased assets. Franchises (category 14) Not relevant. Stora Enso does not operate franchises. Investments (category 15) Impact on emissions deemed immaterial. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 98 ===== SIDA 99 ===== Total GHG emissions disaggregated by Scopes 1 and 2 and significant Scope 3, following the financial consolidation scope (aligned with ESRS) Total GHG emissions disaggregated Retrospective1 Milestones and target years2 Base year 2019 2024 2025 Change, % 2025 2030 (2050) Annual % Target / base year Scope 1 GHG Emissions Gross Scope 1 GHG emissions (CO2-eq, million tonnes) 2.43 1.33 1.14 -15 % n/a n/a Percentage of Scope 1 GHG emissions from regulated emission trading schemes (%) 67% 54% 49% -9 % Scope 2 GHG Emissions Gross location-based Scope 2 GHG emissions (CO2-eq, million tonnes) n/a 0.45 0.47 4 % Gross market-based Scope 2 GHG emissions (CO2-eq, million tonnes) 0.35 0.06 0.05 -26 % n/a n/a Significant scope 3 GHG emissions Total Gross indirect (Scope 3) GHG emissions (CO2-eq, million tonnes) 7.28 4.40 4.48 2 % n/a n/a Purchased goods and services 2.17 1.46 1.45 -1 % Fuel and energy related activities 0.54 0.21 0.20 -5 % Upstream transportation and distribution 1.28 0.95 1.01 6 % Processing of sold products 3.29 1.79 1.84 3 % Total GHG emissions Total GHG emissions (location-based) (CO2- eq, million tonnes) n/a 6.19 6.09 -1 % Total GHG emissions (market-based) (CO2- eq, million tonnes) 10.06 5.80 5.66 -2 % n/a n/a 1 Comparative figures are revised due to additional data and adjustments in calculation approach. 2 Stora Enso’s science-based targets follow a different consolidation principle (GHG protocol) and are therefore disclosed as not applicable in this table. The targets and related performance are reported in ESRS E1-4. When calculating the GHG intensity per net revenue, Total sales as reported in the Financial Statements (Consolidated income statement) are used to determine the greenhouse gas emission intensity. GHG intensity per net revenue, tCO2-eq/EUR million 2025 2024 Total GHG emissions (market-based) per net revenue 607 636 Total GHG emissions (location-based) per net revenue 653 676 GHG removals and storage (E1-7) Stora Enso’s business activities are connected with GHG removals and carbon storage as the Group’s forests sequester carbon and wood-based products store carbon. While the Group does not use these removals or storage in its GHG reporting of Scope 1, 2 and 3, the amounts are disclosed in accordance with ESRS requirements to provide a coherent picture of the positive impacts identified in the double materiality assessment. Stora Enso’s primary means of reducing fossil carbon emissions is through direct action within its own operations and value chain as described in ESRS E1-3. The Group’s carbon performance is reported without offsets as advised by the Science Based Targets initiative. Although direct action is the primary means of emissions reduction, some emissions currently remain unavoidable. Therefore, carbon offsetting is used for certain products to offer materials that help customers reduce their climate impact. Offsetting for products is only done through projects that are measurable and third-party verified, such as those in accordance with the Gold Standard. Accounting principles Forest carbon sink is calculated as the three-year average of annual CO2 sequestration in Stora Enso’s owned or leased productive forest lands. The carbon stored in the Group’s productive forests is calculated as of end of the reporting year. In line with the Financial Statements, the figure contains the biological assets of the Group’s joint operations proportional to the ownership share (50%). For additional information, see Financial Statements, note 4.2 Forest assets. Accounting methods for forest carbon sinks and storage are not standardised, and the chosen method and reporting period can influence the results. In sustainably managed forests, carbon sink and storage levels are maintained or increased throughout the forests’ management cycle. During this cycle, factors such as harvesting and natural disturbances, growth rates related to forest ages and types, and other possible events can cause short-term variations in the carbon sinks and storage. For the reporting year, Stora Enso revised its accounting for carbon stored in its products to align with the ISO 13 391 standard, which applies a half-life decay approach developed by the Intergovernmental Panel on Climate Change (IPCC). In 2024, the figure was calculated by the Swedish University of Agricultural Sciences (SLU) using the IPCC half-life methodology and Stora Enso’s production data. Due to the change in methodology, the reported figures are not directly comparable. Metrics related to GHG removals and storage, million tonnes 2025 2024 Total GHG removals Annual CO2 sequestration in owned or leased productive forest lands, three-year annual average 3.8 4.3 Total GHG storage Total CO2 stored in Stora Enso’s productive forest as of 31 Dec 2025 273 295 Carbon stored in Stora Enso’s products1 2.7 2.5 1 Methodology change affecting comparability, see accounting principles. Anticipated financial effects from material physical and transition risks and potential climate-related opportunities (E1-9) Stora Enso has utilised various scenarios to assess climate change impacts. The scenarios and their outcomes are further described in ESRS 2 IRO-1 Climate change. Stora Enso applies the phased-in provision by ESRS to disclose only qualitative information on anticipated financial effects. Anticipated financial effects from material physical risks Based on the scenario analyses, no material physical climate change risks before 2040 were identified. In alignment with these results, no significant effects on the Group’s financial position, financial performance and cash flow are expected within this long-term timeframe (up to 15 years). Over a longer time horizon of 25-30 years, Stora Enso recognises a risk of forest fires and insect outbreaks causing damage to the Group’s operations globally, including owned and leased forests in Europe, and tree plantations in South America and China. In northern regions, milder winters may also impact the harvesting and transportation of wood and related costs. There is also risk of disruptions in the production, logistics, and supply of raw materials and energy due to extreme weather events. However, there is uncertainty in the resilience analysis, as recent climate development suggests that expected time horizons for impacts in Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 99 ===== SIDA 100 ===== different scenarios might be shorter than anticipated. In 2024, the EU’s climate service reported that for the first time, global warming had exceeded 1.5°C over the course of an entire year. Stora Enso addresses these physical risks in its own operations and upstream value chain by increasing mixed forests and promoting sustainable forest management, diversifying wood sourcing, enhancing material efficiency, and monitoring water risk areas with relevant measures. See ESRS E1-3 for further details on the climate change adaption actions. Anticipated financial effects from material transition risks When considering medium- and long-term transition risks, Stora Enso recognises that in order to reach the net zero target by 2040 and to contribute to the transition to a lower-carbon economy, new technologies and investments in energy-efficient solutions are essential. In terms of Scope 3, the lack of direct control over value chain emissions may create challenges in achieving reduction targets. This, in turn, could damage Stora Enso’s reputation and brand, potentially resulting in a loss of investor and customer confidence, higher cost of capital, and decreased revenues. A second transition risk relates to evolving regulation and standards, particularly regarding the accounting of biogenic emissions, which are currently considered carbon-neutral and not included in mitigation plans. A change in the accounting standards for these emissions could affect the Group’s pathway towards climate neutrality and alter product lifecycle assessments. The transition risks relate to the Group’s production assets and industrial operations. Climate change mitigation actions and short- and medium- term investments to address these risks are described in ESRS E1-3 and in the graph ‘Achieved and expected reductions’ in ESRS E1-4. P o t e n t i a l l o n g - t e r m i m p l i c a t i o n s i n c l u d e s u p p l y c h a i n d i s r u p t i o n s c a u s e d b y c l i m a t e - r e l a t e d h a z a r d s o r r e g u l a t o r y c h a n g e s a f f e c t i n g upstream partners. Potential to benefit from material climate-related opportunities Stora Enso’s climate change mitigation and adaptation actions are expected to generate long-term cost efficiencies across operations. Sustainable forest management enhances the resilience of forest ecosystems, reducing the risk of climate-related damage and preserving asset value. In northern latitudes, changing climate conditions may support increased tree growth and broader species distribution, potentially improving forest productivity and lowering sourcing costs over time. The Group’s high energy self-sufficiency reduces exposure to external cost volatility and market disruptions. With access to renewable biomass and fossil-free electricity, Stora Enso is well-positioned to benefit from the green transition. Climate-related opportunities also relate to Stora Enso’s capability to position its business offering to support the global transition to a low- carbon, circular economy. Growing consumer demand for sustainable products and regulatory changes present opportunities by driving market growth for renewable products and creating competitive advantage through resource efficiency and renewability. Market insights, based on AFRY and company information, suggest the global virgin consumer board market to grow by approximately 3-4% annually by 2030 from 2024 (compound annual growth rate, CAGR). This opportunity is addressed by the Group’s strategy and investments, as well as innovation and product development. One of the key investments is the new production line in Oulu, Finland, which will further strengthen Stora Enso’s position in high added-value renewable packaging materials. The line is expected to reach full capacity during 2027. For actions related to renewable packaging, see ESRS E5-2. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 100 ===== SIDA 101 ===== E S R S E 2 Pollution Policies related to pollution (E2-1) The minimum requirement is that all policies and guidelines are to be reviewed at least once every two years. Each policy owner shall ensure that the documents under their responsibility are reviewed and updated within the defined time frame. The Environmental Guidelines outline the commitment to protecting the environment and complying with all applicable legal and regulatory obligations. This means applying precautionary management actions to mitigate and remedy potential adverse impacts on the environment and people. The mitigation and prevention measures focus on ensuring compliance with regulations, controlling pollution to air, water, and soil, and implementing and maintaining environmental management systems. The guidelines specifically address phosphorus, nitrogen, chemical oxygen demand (COD), and absorbable organic halogen compounds (AOX), but do not cover all pollutants. Additionally, the guidelines do not explicitly address the avoidance of incidents and emergencies, as these are expected to be documented in local environmental management systems. The guidelines do not detail remediation of actual negative impacts, as corrective actions are typically defined specifically for each case through dialogue between authorities and the relevant production unit. For further details on the guidelines, see ESRS E1-2. Actions and resources related to pollution (E2-2) The following two key actions carried out in the Group’s own operations contribute to the achievement of the objectives outlined in the Environmental Guidelines for preventing, mitigating, and remedying impacts to air, water, and soil. Both of these continuous, long-term actions are aligned with the target of achieving zero environmental non- compliances. 1) Controlling and monitoring emissions to air and water Stora Enso implements and maintains processes and systems to monitor and control emissions to air and water, thereby managing its pollution- related impacts and associated risks. This is locally managed and implemented at each production site. • Environmental management systems are considered the primary tool tool for implementing precautionary measures and driving continual improvements in processes and environmental performance. All production sites are required to implement and uphold third-party certified environmental management systems. Regular internal and external audits ensure that these systems are upheld according to established standards and are used to assess performance. At the end of 2025, 49 (47) out of the Group’s 58 (57) production sites had an ISO 14001 certificate. • Leveraging the best available techniques (BAT) and applying the most effective methods at production sites helps to reduce pollution and optimise resource use. • To ensure water quality and compliance with permit limits, Stora Enso’s board, pulp, and paper mills continuously monitor effluent discharges, including temperature and pH levels, into local water bodies. Compliance with environmental permit limits is regulated and controlled by relevant authorities, with any deviations promptly reported to them. • Stora Enso employs advanced technologies such as scrubbers and boiler process control systems to reduce air emissions and mitigate odours from point sources at its industrial units. These emissions primarily stem from fuel combustion for energy generation and from production processes. As an example, Stora Enso is investing in the Heinola fluting mill in Finland to renovate the sulphur furnace and absorption tower, aiming to reduce sulfur emissions by approximately 30% and enhance chemical recovery efficiency. The project is scheduled for completion in autumn 2026. 2) Addressing environmental incidents and liabilities Stora Enso addresses the management of environmental incidents by maintaining a group-wide reporting and management process. The approach aims to ensure regulatory compliance, adherence to permits, and continuous improvement. It involves the following steps: • Significant events are reported to the Board’s Sustainability and Ethics Committee, and are also included in the externally published Annual Report each year. This process aligns with the Environmental Guidelines, which prioritise regulatory compliance, adherence to permits, and the target of zero environmental incidents. • Root cause analysis is carried out for each incident, and corrective and preventive measures are decided accordingly. The analysis findings are shared internally for ongoing improvement and prevention efforts. • Internal investigations are conducted with the involvement of relevant internal and external stakeholders for each incident. The timeframe for completion varies depending on the nature of the case. Collaboration and dialogue with the relevant authorities are managed individually for each case. • Corrective and preventive measures may include, for example, training of the Group’s own employees and suppliers, and installation of new equipment. In some instances, Stora Enso is also subject to potential fines from local authorities. The cases that occurred, along with the corrective short-term actions and remediation taken in 2025, are described in ESRS E2-3. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 101 Material impacts, risks and opportunities (ESRS 2 SBM-3) Description Impact, risk, or opportunity Time horizon Location in the value chain Related sub-topic or sub-sub-topic Emissions to air and effluents to water are generated from industrial operations. Actual negative impact Short, medium, and long term Own operations, joint operations Pollution of air/water Significant environmental incidents occur at industrial operations and forestry (wood supply) operations. Actual negative impact Short, medium, and long term Own operations Pollution of air/water Stora Enso has an environmental provision related to remediation of an existing condition caused by past operations. see E2-2. Within Stora Enso’s own organisation, thresholds for pollution of soil are not exceeded. Actual negative impact Short, medium, and long term Own operations Pollution of water/soil Risk of pollution-related environmental non-compliance, such as exceeding permit limits. Incidents may damage Stora Enso’s reputation and brand, which may result in a loss of investor and customer confidence leading to higher cost of capital and decreased revenues. Incidents may also lead to fines and other financial liabilities. Risk Short, medium, and long term Own operations Pollution of air/water ===== SIDA 102 ===== • Stora Enso has environmental provisions related to remediation of an existing condition caused by past operations. The most material provision being the agreement between Stora Enso and the City of Falun that obligates the Group to purify runoff water from the Kopparberg mine before releasing the water into the environment. The provision at year-end amounted to EUR 26 (27) million. For additional information on all environmental provisions, see Financial Statements, note 4.9 Provisions. Current and future resources related to pollution Investments in new technology and upgrading of existing equipment are necessary to control and reduce environmental pollution and its impacts. These improvements are targeted at enhancing quality of air and water, maintaining compliance, and minimising the risk of accidental spills into the environment. In 2025, Stora Enso’s total environmental investments amounted to EUR 126 (120) million. These investments were mainly targeted at improving the quality of air and water, to enhance resource and energy efficiency, and to minimise the risk of accidental spills. In 2025, the Group’s environmental investments related to emissions to air and water amounted to EUR 86 (93) million. Future investments will be decided by prioritising required improvements at industrial units. Stora Enso’s environmental costs in 2025, excluding interest and including depreciation, totalled EUR 214 (208) million. These costs include taxes, fees, refunds, permit-related costs, and repair and maintenance costs, as well as wastewater treatment chemicals and certain other materials. In 2025, the Group’s environmental costs related to emissions to air and water totalled EUR 71 (75) million. Targets related to pollution (E2-3) Stora Enso has a continuous target of zero significant non-compliance events to support and promote its environmental policies and prevent negative impacts. Target Scope Baseline year and value 2025 2024 Continuous target of zero significant non- compliance events Own operations 2017: 10 8 24 Of which related to pollution of air 3 4 Of which related to pollution of water 3 8 Other (waste handling1) 1 0 1 The incident categorised as ‘Other’ relates to event described on the third row in the table to the right. In 2025, both the total number of incidents and the number of non- compliance incidents related to air and water decreased compared to the previous year; however, the target was not met. Stora Enso continues to focus on preventive measures and conducts root cause analyses of events to drive continuous improvement. Accounting principles The target is measured as the number of significant non-compliance events occurred during the reporting year. The target includes Stora Enso’s own business operations: production and harvesting sites. A non-compliance in pollution typically means crossing a specific local monthly, quarterly, or annual permit limit of air pollutants, or emission to water. The incidents related to pollution of air and water are reported per production site, based on their specific environmental permissions. The target focuses on controlling air pollutants and their specific loads, as well as emissions to water and their specific loads, since crossing of monthly, quarterly, or annual local permit is considered as a significant non-compliance event. The target is not based on conclusive scientific evidence, but rather on legal compliance. The target is monitored based on the group-wide reporting process described in ESRS E2-2. Stakeholders were not included in the target setting. In alignment with the Corporate Sustainability Reporting Directive, the target is disclosed also in ESRS E4-4, covering non-compliance cases related to biodiversity and ecosystems. The cases related to pollution of air and water are presented in the below table. Location Description of the event Corrective and preventive measures Ostrołęka mill, Poland Two events: Water permit limit exceeded for chemical oxygen demand (COD) and suspended solids due to wastewater overload at the treatment plant while emptying the retention tank Immediate reduction of COD load and preparation of the treatment plant for future load increase. Further process adjustments by improving aeration, introduction of automatic sewage pumping system, and staff training. Skoghall mill, Sweden The flue gas measurement equipment on the bioboiler exceeded the permitted 10- day failure limit Flue gas analyser replaced during a maintenance stop. Skutskär mill, Sweden Organic material was deposited at a landfill despite the ban, due to a failure in waste labelling Landfilling stopped and waste stored at the landfill to capture washing liquids in the leachate. Awaiting alternative disposal management method and to reduce fiber content in the waste. Skutskär mill, Sweden At one of the recovery boilers, total annual sulphur emissions exceeded the limits set by the BAT conclusions Actions completed in boiler operations, analysis instruments, and operator training. Emissions are now within the permitted limits. Varkaus mill, Finland Nitrogen oxide emissions (NOx) exceeded the annual permit limit due to excess air entering the combustion process Improvements made to combustion process control. Investments in the combustion air fan planned for 2026 to reduce excess air and NOx emissions. Zdirec mill, Austria Leakage of impregnating chemicals from the mill premises to the river Doubrava due to uncontrolled flushing of the new impregnation line into the storm sewer Sewers under the impregnation station cleaned both onsite and offsite towards the river. Camera monitoring of the sewerage system installed to support further inspections and clarify the flow path. The official report from the authorities still pending. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 102 ===== SIDA 103 ===== Pollution of air, water and soil (E2-4) Accounting principles According to the European Sustainability Reporting Standard on Pollution, the consolidation of each pollutant includes only the emissions from facilities for which the applicable threshold value specified in Annex II of Regulation (EC) No 166/2006 is exceeded. For particulate matter (PM), Stora Enso reports the total amount, not specifically PM10. The reporting of pollutants is a combination of unit-specific direct measurement, estimates, and calculations of emissions. Aligned with Stora Enso’s Financial Statements, the figures also contain emissions to air and water generated by the Group’s joint operations according to the ownership share (50%). Water effluents are monitored using both online and offline measurements, such as standard methods for the forest products industry. Board, pulp, and paper production sites monitor process water discharges, and water pollutants such as suspended solids, chemical oxygen demand, total organic carbon, phosphorous, nitrogen, and absorbable organic halogen compounds. Monitoring and reporting are conducted daily, monthly, or annually depending on the sites’ operations, pollutants, and environmental permits. The share of the measure obtained from direct measurement is estimated to be almost 100%. Third party assessments are used as a basis for estimates, in particular for heavy metal related emissions when direct measuring equipment is not available. In these cases, the average of third-party measured values is applied for the full year. The data is reported by each mill to Group’s environmental reporting system based on direct measurements or estimates based on third party calculations. Non-compliances and incidents related to pollution in 2025 are disclosed as part of ESRS E2-3, detailing short-term corrective and preventive actions taken. The thresholds for pollution of soil in the Group’s own operations are not exceeded, and therefore not disclosed as part of ESRS E2-4. Emissions to air by pollutant Unit 2025 2024 Ammonia (NH3) tonnes 282 189 Carbon monoxide (CO) tonnes 5,067 5,202 Chlorine and inorganic compounds (as HCl) tonnes 47 41 Nitrogen oxides (NOx/NO2) tonnes 7,429 7,435 Non-methane volatile organic compounds (NMVOC) tonnes 1,394 1,352 Particulate matter (PM) tonnes 981 1,178 Sulphur oxides (SOx/SO2) tonnes 312 335 Copper and compounds (as Cu)1 kg n/a 130 PCDD + PCDF (dioxins + furans) (as Teq)kg 3 30 1 Not applicable for 2025, as the threshold was not exceeded. Emissions to water by pollutant Unit 2025 2024 Halogenated organic compounds (as AOX) tonnes 221 195 Total nitrogen tonnes 429 517 Total organic carbon (TOC) (as total C or COD/3) tonnes 6,138 4,593 Total phosphorus tonnes 71 63 Zinc and compounds (as Zn) tonnes 11 9 Cadmium and compounds (as Cd) kg 312 312 Copper and compounds (as Cu) kg 1,536 1,370 Mercury and compounds (as Hg) kg 71 15 Nickel and compounds (as Ni) kg 895 570 Polycyclic aromatic hydrocarbons (PAHs)1 kg 315 n/a 1 Not applicable for 2024, as the threshold was not exceeded. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 103 ===== SIDA 104 ===== E S R S E 3 Water and marine resources Policies related to water and marine resources (E3-1) The minimum requirement is that all policies and guidelines are to be reviewed at least once every two years. Each policy owner shall ensure that the documents under their responsibility are reviewed and updated within the defined time frame. The Environmental Guidelines are described in ESRS E1-2. For managing water-related negative impacts and risks defined in the above table in SMB-3, the guidelines set the founding principles for efficient, low, and optimised water use. This encompasses water withdrawal, water treatment, and process water discharges. More specifically, the guidelines set out a commitment to reducing the impacts of water use, and enhancing efficiency and recycling in water treatment to support more sustainable sourcing of water. They also emphasise improving water quality, minimising pollution, and mitigating or remediating potential adverse impacts on the environment and people. ISO 14001 environmental management system comprises on-site management procedures for identifying and assessing material water- related impacts, risks, and opportunities focusing on the local material water issues with the highest priority. Process water is minimised with tailored activities to achieve continuous improvements. The wastewater treatment facilities that treat the process water from production processes aim to prevent ecological harm cased by discharged water. The impacts on local communities are addressed as part of the Environmental and Social Impact Assessments for new industrial projects, as well as through due diligence processes for mergers, acquisitions, and divestments. Most of the production units are located in areas where water is generally abundant, and water scarcity is closely monitored. Water risks are identified for ground and surface water scarcity, failures of water-related equipment, flooding, run-off and rising water levels, and for raw water temperature implications. The Environmental Guidelines outline the commitment to drive proactive water stewardship in this areas. Actions and resources related to water and marine resources (E3-2) Stora Enso’s three key long-term actions to improve water use efficiency and to mitigate potential negative impact in areas of water scarcity are described below. The actions contribute to the objectives of the Environmental Guidelines on protecting the environment. 1) Site-specific investments in technology and equipment are done on an annual basis to enhance water efficiency. In 2025, the Group supported water related investments totalling approximately EUR 37.2 (40.6) million. In the Financial Statements, these investments are included in the note 4.1 Intangible assets, property, plant and equipment and right-of-use assets (under the corresponding ‘Additions’ rows). This action supports the targets of reducing specific process water discharges and decreasing the trend for total water withdrawal as described in ESRS E3-3. 2 ) Action is taken locally to manage the potential impact related to production units that are located in areas with water stress. In 2025, six production units were located in areas of high water stress. WRI Aqueduct Water Risk Atlas is used to assess water-related risks, providing information on water scarcity, stress, flooding, and water quality. Examples of initiatives from year 2025 to address water stress include: • At the Langerbrugge mill in Belgium, water discharges were reduced by approximately 7% compared to the previous year mainly due to enhanced recycling of water effluents. • Beihai mill in China continuously seeks to enhance water efficiency. For example, the mill has optimised the use of sealing water in effluent treatment and improved water circulation processes in food service board production to reduce discharged water and fresh water consumption. 3) Continuous efforts are taken at the production sites to optimise water use by utilising only freshwater from surface, ground, and municipal sources. After use, the process water is cleaned at treatment plants before being returned to the local ecosystem. As an outcome, almost 95% (95%) of water is recycled back into the environment, while only around 5% (5%) of water is consumed in production processes. This action helps to mitigate the impact generated by both water consumption and withdrawal. For the Group’s environmental costs and investments, see ESRS E2-2. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 104 Material impacts, risks and opportunities (ESRS 2 SBM-3) Description Impact, risk, or opportunity Time horizon Location in the value chain Related sub-topic or sub-sub-topic Stora Enso’s industrial operations withdraw significant amounts of water, as the production of board, pulp, and paper requires substantial volumes, accounting for over 99% of the Group’s total withdrawal. Actual negative impact Short, medium, and long term Own operations Water withdrawals Water-intensive production processes. Actual negative impact Short, medium, and long term Own operations, joint operations Water consumption Water withdrawal and consumption occur in areas of water scarcity which may impact local water sufficiency. Potential negative impact Short, medium, and long term Own operations Water withdrawals; Water consumption Industrial operations impact freshwater ecosystems through water discharges. Actual negative impact Short, medium, and long term Own operations, joint operations Water discharges Majority of the production sites are located in areas with low water stress which contributes to consistent and sufficient water supply and ensures operational stability and efficiency. Moreover, it supports the Group’s long-term resilience against climate change as areas with a low risk of water inadequacy are less likely to experience the adverse impacts of climate change, such as prolonged droughts or water scarcity. Opportunity Medium and long term Own operations Water withdrawal; Water consumption ===== SIDA 105 ===== Targets related to water and marine resources (E3-3) To reduce its negative impacts related to water use, Stora Enso has established a target on reducing specific process water discharges and the total water withdrawal. The targets are in line with the Environmental Guidelines, defining the founding principles and Group requirements for water management. Target, m3/tonne Scope Baseline year and value 2025 2024 Decrease in process water discharges per saleable tonne of board, pulp, and paper by 17% by 2030 Selected board, pulp, and paper production sites 2019: 36 m3 32 34 Continuous target on decreasing the trend for total water withdrawal per saleable tonne All board, pulp, and paper production sites 2016: 60 m3 56 60 In 2025, water discharges decreased compared to the previous year, representing an 10% reduction from the baseline year. Total water withdrawal also declined, in line with the target for a decreasing trend. Stora Enso continues to enhance its water performance through targeted investments and ongoing improvements in water management and efficiency. Accounting principles The targets have been established for operations with most significant impact on water use, and include process water and cooling and non- contact water intake. Process water discharges include the discharges by selected board, pulp, and paper production sites as cubic metres (m3). The target for total water withdrawal contains all board, pulp, and paper production sites. The water withdrawal and discharges are normalised by dividing water m3 with the total production of board, pulp, and paper as saleable tonnes (t) during the same period. Detailed accounting principles are available in ESRS E3-4. Setting a target on water is not mandated by legislation. External stakeholders were not involved in the target setting. The targets are not based on conclusive scientific evidence. Water consumption (E3-4) Production of board, pulp, and paper requires substantial amounts of water, accounting for over 99% of the Group’s total water withdrawal. These units predominantly draw process and cooling water from surface water sources, with 98% (98%) of the total water withdrawal derived from surface water in 2025. Approximately 2% (2%) is sourced from municipal or groundwater supplies. According to the WRI Aqueduct Water Risk Atlas tool, six of the Group’s production units operate in regions with High Baseline Water Stress: Beihai in China, Langerbrugge and Roeselare in Belgium, Wujin and Qian´an corrugated units in China, and Łódź in Poland. During 2025, these units withdrew 14.7 (15.7) million m3 of water, which is 4% (4%) of the Group’s total water withdrawal. The process water discharges of these units were 11.6 (12.7) million m3, which is 5% (6%) of the Group’s total process water discharges. Stora Enso does not store water within is production sites. Accounting principles Aligned with the Financial Statements, the water related metrics include the Group’s joint operations according to the ownership share (50%). Stora Enso continuously improves the accuracy of water reporting and consolidation of data. The data is reported by each mill to the Group’s environmental reporting system. Total water withdrawal includes process water and cooling and non- contact water intakes by all industrial units as cubic metres (m3). Total water discharges include the discharges of all industrial units as cubic metres (m3). Stora Enso has implemented a standardised procedure to report water at board, pulp, and paper units, where cooling and process water flows are measured in different physical positions at the units. Total water withdrawal is a sum of total water withdrawals from ground, municipal, and surface water sources at all production sites. Total water discharge is a sum of process water discharges as well as cooling and non-contact water discharges from all production sites. The share of the measure obtained from direct measurement is estimated to be approximately 60%. The reported water consumption includes estimated water in products, residuals, and waste, as well as volumes of evaporated water to air from process water cooling towers, from wastewater treatment plants, and from cooling towers for non-contact water at the Group’s mills. Sawmills, corrugated production units, and offices are included in the consumption figures based on estimates. The calculation of water consumption builds on the Confederation of European Paper Industries’ (CEPI) method of describing water use and consumption, and the Swedish Environmental Research Institute’s (IVL) report on Water Profile for the Swedish forest industry. Almost 100% of the total volume of water consumed is determined through a combination of calculation and estimation. The total water recycled and reused is reported based on the amounts of reused cooling and non-contact water. Water intensity ratio is calculated as the Group’s total water consumption in m3 per million EUR of the Group’s total sales as reported in the Financial Statements. Metrics related to water Unit 2025 2024 Total water withdrawals million m3 386 401 Total water discharges million m3 360 379 Total water consumption million m3 20.5 19.6 Total water consumption in areas at water risk, including areas of high- water stress million m3 2.0 1.6 Total water recycled and reused million m3 16.9 18.6 Water intensity ratio m3/million EUR 2,203 2,169 Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 105 ===== SIDA 106 ===== ESRS E4 Biodiversity and ecosystems Transition plan and consideration of biodiversity and ecosystems in strategy and business model (E4-1) In 2021, Stora Enso introduced a new sustainability agenda centred around three focus areas: climate, biodiversity, and circularity. This was preceded by an assessment of Stora Enso’s business model and strategic resilience in relation to future key sustainability risks and opportunities. The assessment process engaged internal stakeholders from all business areas, while also seeking input from external experts. The assessment did not include consultations with affected communities. The assessment’s time horizons were set to 2030 and 2050. The assessment’s focus was on transition events, such as increasing legislation and external stakeholder pressure, as well as physical and systemic risks. The assessment covered Stora Enso’s own operations and incorporated a number of scientific studies and analysis, one of the most important being the Planetary Boundary concept by Stockholm Resilience Center. The analysis did not cover the upstream and downstream value chain. The results of the analysis indicated that biodiversity loss is proceeding at an accelerated speed, and stakeholders expect companies to address systemic climate and biodiversity related risks beyond their own industries. The analysis suggests that, to future-proof Stora Enso’s business and strategy, it is crucial for its operations to reduce emissions, for its products to store carbon and contribute to mitigating biodiversity loss, and for the company to implement responsible practices that protect the environment. As an outcome, Stora Enso established a transition plan designed for driving new opportunities and future-proofing the Group’s business. For biodiversity, an ambition was established on achieving a net-positive impact on biodiversity in the Group’s own forests and plantations by 2050. The long-term goal is supported by a set of biodiversity indicators, with defined intermediate targets. Furthermore, global advocacy and research partnerships — such as cooperation with the International Union for the Conservation of Nature (IUCN) and the International Sustainable Forestry Coalition (ISFC) — are integral to advancing biodiversity. The resilience plan for climate was updated during 2025 and is presented under ESRS E1-1. In November 2025, Stora Enso completed a strategic review of its Swedish forest assets and initiated preparations for the separation of the assets into a new publicly-listed Swedish. The demerger is planned to be completed in 2027. The current ESRS E4 disclosure represents the company structure and business model as of 31 December 2025. E4 disclosure requirement related to ESRS 2 SBM-3 Stora Enso had a total of 1.9 (2.1) million hectares of owned or leased lands in 2025. Additionally, the Group purchased wood from approximately 22,400 (21,000) private forest owners. The Group does not have direct impact on land-use change as existing forests are not converted to agriculture, plantations, or other purposes. In the double-materiality assessment, no material negative impact with regards to land degradation, desertification, or soil sealing was identified. In addition to its own forestry sites, Stora Enso sources most of its wood from private and other forest owners in Finland, Sweden, Norway, the Baltics, and Central Europe. These harvesting sites are considered to be part of the Group’s upstream value chain. As per the Corporate Sustainability Reporting Directive, Stora Enso’s material forestry sites fall into two categories: sites under operational control and sites within the value chain, where the Company holds 50% ownership, or less. The Group’s own forests and harvesting sites of the local forest owners may be located near biodiversity-sensitive areas, but significant negative impact is not typically caused to these habitats due to strict policies and harvesting practices. Forest operations may affect threatened species, with risks mitigated through strict guidelines and measures that protect and promote habitats. See ESRS E4-3 ‘Resources to manage biodiversity and forest management’ for an environmental incident that took place in 2024. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 106 Material impacts, risks and opportunities (ESRS 2 SBM-3) Description Impact, risk, or opportunity Time horizon Location in the value chain Related sub-topic or sub-sub-topic Active biodiversity management and conservation in forest operations, such as spatially optimising the volume of deadwood and protection of key habitats, contribute to positive biodiversity impact. Actual positive impact Short, medium, and long term Upstream value chain, Own operations, joint operations Direct exploitation Forest management and harvesting in and near key species or habitats can have a negative impact on biodiversity. Actual and potential negative impact Short, medium, and long term Upstream value chain, Own operations Direct exploitation; Endangered species and their habitat Dependency on wood as raw material exposes Stora Enso to wood market price fluctuations. For example, evolving forestry and biodiversity regulations related to harvesting levels and forest management choices could lead to a lower supply of raw material and/or higher wood prices, which may adversely affect the competitiveness of products. Risk Short, medium, and long term Upstream value chain, Own operations Impacts and dependencies on ecosystem services Global biodiversity decline can reduce the value of Stora Enso’s forest assets, decrease forests’ resilience to external calamities, and impact the acceptability of wood as raw material. Risk Medium and long term Own operations, joint operations Impacts and dependencies on ecosystem services Risk of non-compliance related to harvesting, such as damage to ecologically sensitive areas or non-compliance with regulations. Incidents may damage Stora Enso’s reputation and brand, which may result in a loss of investor and customer confidence leading to higher cost of capital and decreased revenues. Incidents may also lead to fines and other financial liabilities. Risk Short, medium, and long term Upstream value chain, Own operations Direct exploitation Through its own and leased forest assets, Stora Enso ensures a reliable and consistent wood supply, reduces reliance on external suppliers, promotes environmental stewardship through sustainable forestry practices, preserves and actively manages biodiversity, and contributes to carbon sequestration efforts. Opportunity Short, medium, and long term Own operations, joint operations Impacts and dependencies on ecosystem services Biodiversity enhancement, supported by new technology developments, could increase forest asset and ecosystem values. Stora Enso leverages science, technology, and data to optimise biodiversity management and conservation across its forestry operations. Opportunity Short, medium, and long term Upstream value chain, Own operations, joint operations Impacts and dependencies on ecosystem services; Endangered species and their habitat Climate change related physical risks on biodiversity and the Group’s forest assets are described in ESRS E1. ===== SIDA 107 ===== Forestry site Direct operational control Ecological status Activities impacting ecological status Biodiversity- sensitive areas impacted Sweden (own forest)1 Yes Moderately modified Forestry operations No China1 Yes Largely modified Forestry operations (plantations) No Brazil1 No Largely modified Forestry operations (plantations) No Uruguay1 No Largely modified Forestry operations (plantations) No Tornator - Finland, Estonia, Romania2 No Moderately modified Forestry operations No Private forest owners: Finland, Sweden, Norway, Baltics No - Forestry operations Yes 1 Stora Enso has identified a financial dependency on biodiversity and ecosystems related to the sites it owns directly or jointly, as the biodiversity and ecosystem condition may impact the value of the assets in the long- term. 2 Tornator Oyj is a 41%-owned Finnish associate company. Policies related to biodiversity and ecosystems (E4-2) The minimum requirement is that all policies and guidelines are to be reviewed at least once every two years. Each policy owner shall ensure that the documents under their responsibility are reviewed and updated within the defined time frame. Wood and Fibre Sourcing, and Land Management Policy Stora Enso’s Wood and Fibre Sourcing, and Land Management Policy outlines the approach to responsible sourcing of wood and fiber from sustainably managed forests and tree plantations. The policy addresses sustainable forest and land management practices, which safeguard the health and ecological functions of ecosystems and help conserve biodiversity, soil, and water resources. The policy also addresses the prevention of negative impacts and potential risks to biodiversity that may arise from unsustainable forest management and harvesting practices or levels. The Environmental Guidelines introduced in ESRS E1-2 further elaborate on the policy objectives. Key contents of the policy include: • utilising wood in an efficient way to ensure high added value from the resources; • promoting sustainable forest and land management practices with forest owners; • monitoring the condition of forests and results of management activities, and using, for example, forest certifications to promote and verify sustainable forest management; • utilising traceability systems to ensure that all the wood and fiber used in own operations originates from legal sources and does not result in deforestation or forest degradation; • designing and managing tree plantations as part of local land use and contributing to sustainable livelihoods; • recognising the unique economic and cultural rights of indigenous peoples. In addition, the policy forbids procurement of wood and fiber which: • has been illegally harvested; • logged in protected areas or areas currently undergoing official processes of designation for protection, unless the logging is clearly in line with national conservation regulations; • harvested in forests where High Conservation Values are threatened by logging; • sourced from areas undergoing conversion from forest or other wooded ecosystems to plantations or non-forest uses, unless such conversion is justified on grounds of net social and environmental gain; or • harvested in violation of traditional rights or civil rights. Biodiversity and ecosystem protection are included in this policy, which covers owned forests, leased forests, and managed sites located in or n e a r b i o d i v e r s i t y - s e n s i t i v e a r e a s . S t o r a E n s o h a s n o t a d o p t e d p o l i c i e s specifically to sustainable sea practices. The policy does not specifically relate to material dependencies, or physical and transition risks or opportunities. The scope of the policy covers the Group’s own operations and upstream value chain, and the EVP in each respective business area managing the forest assets is accountable for ensuring its implementation. The policy is made available on the Group’s website. Supplier Code of Conduct The Supplier Code of Conduct sets the minimum requirements on suppliers with the obligation to protect the environment, among other topics. It specifically obliges the supplier to understand the connections that its business may have on impacts on biodiversity and, as relevant, act to safeguard biodiversity. The policy addresses the negative impacts and risks, which may result from unsustainable forest management practices. The Supplier Code of Conduct is required to be signed as part of the pre- qualification process. See ESRS E1 for further details on the policy. Actions and resources related to biodiversity and ecosystems (E4-3) Sustainable forest management and biodiversity Stora Enso strives to actively enhance biodiversity as an integral part of sustainable forest management practices. The key actions below relate to enhancing positive biodiversity impact, mitigating negative impacts and risks related to unsustainable forestry practices, and the opportunities enabled by new technology for optimised biodiversity management and conservation. They support the ambition of a net positive impact on biodiversity and zero environmental non-compliances, as well as the objectives of the Wood and Fibre Sourcing, and Land Management Policy. 1) Retention forestry (even-aged forestry), the prevalent method in the Northern region, involves thinning middle-aged forests to promote growth of vital trees. Final harvesting involves clear-felling while retaining biodiversity features such as living trees in groups and buffer zones, as well as deadwood. The forest is regenerated by planting seedlings adapted to the site and complemented by natural regeneration. In 2025, approximately 41 (39) million tree seedlings were planted or delivered for planting in the Group’s forests in the Nordics. 2) Stora Enso applies active, locally adapted biodiversity management in its own forests and plantations, with a specific focus on safeguarding endangered species and maintaining set-aside areas for nature conservation. In Finland, Sweden, and the Baltics, collaborations with private forest owners provide services and raise awareness to promote biodiversity. Examples from the reporting year include: • In its own forests, Stora Enso continued to use targeted measures to maintain habitats for threatened species such as the white-backed woodpecker, long-horned beetle, and sand lizard, creating conditions for biodiversity at the landscape level. • In Finland, the Group collaborated with Tornator to restore 85 hectares of wetlands. Over time, restored wetlands are expected to function as carbon sinks, contributing to climate mitigation. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 107 ===== SIDA 108 ===== • In Sweden, the focus has been on restoring streams, with three projects completed in 2025 to return waterways to a natural state and create diverse aquatic habitats for fish, aquatic animals, and birds. • In 2024, Veracel, Stora Enso’s joint operation in Brazil, signed a long-term agreement with Biomas to restore 1,200 hectares of degraded set-aside areas, with financing linked to the future sale of carbon credits. The restoration activities were started in 2025. 3) Stora Enso advanced its use of AI and other technologies to better integrate biodiversity and wood production, including digital forest twins that model forest management actions and predict impacts on rare species. As one significant step, the partnership project between Stora Enso and International Union for Conservation of Nature (IUCN), launched in early 2024 to promote positive forest biodiversity outcomes, was completed in 2025. Its goal was to develop a framework enabling the forestry sector to achieve a net positive biodiversity impact through active forest management. The main outcome is the proof-of-concept integration of the STAR (Species Threat Abatement and Restoration) biodiversity metric, developed by IUCN, with Stora Enso’s forest planning system. The framework enables informed prioritisation of biodiversity actions across forest landscapes over time, ensuring that the most urgent threats to biodiversity are addressed first and in the most effective way to minimise negative impact on wood production. The results, including technical details, were intended for publication in scientific journals and were presented at the IUCN World Conservation Congress 2025. 4) In 2025, Stora Enso implemented strengthened training practices, revised ways of working, and enhanced control mechanisms operations to enforce compliance with company guidelines and mitigate risks related to harvesting activities. These precautionary actions were based on an audit conducted in 2024–2025, reviewing all wood procurement planning, implementation, and control processes. The implementation and sufficiency of the corrective actions have been verified by an external auditor. See also, ‘Resources to manage biodiversity and forest management’. Forest certification and deforestation-free practices Stora Enso takes continuous actions to respond to the objectives of the Wood and Fibre Sourcing and Land Management Policy and the Supplier Code of Conduct on responsible sourcing of wood and sustainable forest management practices. Continuous forest regeneration measures are complemented by the following three continuous actions to address the risk related to non-compliance in harvesting operations. 1) Stora Enso has implemented forest certifications and third-party traceability systems to verify the origin of the wood and to ensure that it comes from sustainable sources. These include the Forest Stewardship Council’s (FSC) Chain of Custody/Controlled Wood scheme, the Chain of Custody/Due Diligence System of the Programme for the Endorsement of Forest Certification (PEFC), and the ISO 14001 environmental management system. The action encompasses all wood sourcing operations (own operations and upstream value chain) and contributes to the target on forest certification coverage described in ESRS E4-4. 2) Stora Enso does not establish tree plantations in natural forests, protected areas, or water-sensitive locations, and only uses land with low biodiversity values, such as former pastureland. The action encompasses plantations in South America and China. 3) Stora Enso has prepared for compliance with the EU Deforestation Regulation by enhancing due diligence processes and IT systems to ensure supply chain transparency and regulatory alignment on deforestation. For engagement with affected communities, see ESRS S3. Resources to manage biodiversity and forest management At the end of 2025, Stora Enso’s forest assets, including leased land, were valued at EUR 8.5 (8.9) billion, spanning 1.9 (2.1) million hectares globally. In September 2025, Stora Enso divested approximately 175,000 hectares of Swedish forest land, equivalent to about 12.4% of its Swedish forest land holdings, and retains a 15% ownership of the sold company. Stora Enso meets 35% (36%) of its wood raw material needs from its own sources and long-term agreements. The Group’s forests assets contribute to carbon sequestration (described in ESRS E1-7), biodiversity conservation, and the mitigation of financial risks related to wood dependency and availability. For additional information on Stora Enso’s forest assets and related valuation, see Financial Statements, note 4.2 Forest Assets. In November 2025, the Group completed a strategic review of its Swedish forest assets as part of its stronger focus on renewable materials and packaging and initiated preparations for the separation of the assets into a new publicly-listed Swedish company through a statutory partial cross- border demerger. The demerger is planned to be completed in 2027. In addition to owning forests, Stora Enso’s current resources (and those anticipated for the future) to manage biodiversity and forest management include operative costs related to personnel in the biodiversity programmes and forest management, operating tree nurseries, forest certification fees, and the development of AI and other technologies. In 2024, an environmental incident occurred at Hukkajoki, Finland, where forest activities caused significant harm to an endangered freshwater mussel species at one harvesting site. In 2025, Stora Enso and Metsähallitus Parks & Wildlife Finland signed a co-operation agreement until 2030 to improve the protection practices of the highly endangered freshwater pearl mussel in Finland. During the contract period, mussel habitats will be mapped, inventoried and restored, watercourses will be restored and managed, and information system data will be improved. Stora Enso will finance the programme with EUR 1.1 million by the end of 2030. The environmental incident is being investigated as a serious nature conservation crime. In 2025, the Group’s Forest management and Conservation forestry - related EU taxonomy-eligible opex was EUR 29 (25) million and capex EUR 8 (9) million. Description of taxonomy-eligible activities is provided in the section on EU Taxonomy. Stora Enso has not used biodiversity offsets in its action plans. Targets related to biodiversity and ecosystems (E4-4) Biodiversity Stora Enso is committed to an ambition of a net-positive impact on biodiversity in its own forests and plantations by 2050 through active biodiversity management. Biodiversity impact indicators measure how well biodiversity is preserved in harvesting, according to science-based research, external recommendations, and internal standards and requirements. Stora Enso’s current target is to reach 90% performance for each indicator, meaning that at least 90% of surveyed sites meet the best practices for biodiversity as defined in the Group’s biodiversity requirements. The target relates to identified impacts in relation to the Group’s own operations and upstream value chain, and is aligned with Stora Enso’s Wood and Fibre Sourcing, and Land Management Policy. When considering the mitigation hierarchy, the target can be allocated to all layers: avoidance, minimisation and restoration of impacts. The target was set before the Kunming-Montreal Global Biodiversity Framework and EU biodiversity strategy for 2030 were established, but is aligned with their targets. Target Scope Baseline year and value 2025 2024 90% performance for each biodiversity impact indicator Harvesting sites in Sweden, Finland, the Baltics 2022: 84% 91% 89% 100% performance for each biodiversity impact indicator by 2030 Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 108 ===== SIDA 109 ===== In 2025, the overall weighted average showed a slight improvement, but some indicators remained below the target level, as shown in the table below. Going forward, the focus will continue on all indicators, but particular attention will be given to those not meeting the target. Accounting principles Biodiversity indicators measure the compliance ratios of inspected harvesting sites against Stora Enso’s specific biodiversity indicators for Sweden, Finland, and the Baltics. The consolidated ratios across the three regions are weighted averages using the harvested volumes in each region as a weight. Ecological thresholds and allocations were not considered when setting the target. Whilst the target is set in line with scientific research, it is not based on conclusive scientific evidence. External stakeholders were not included in the target setting. Biodiversity offsets were not used in the target setting. Compliance rate of biodiversity impact indicators, % 2025 2024 High stumps creation 92% 82% Ground deadwoods preservation 87% 83% Soil and water protection 88% 94% Prioritised habitat preservation 93% 96% Tree retention 89% 85% Buffer zone preservation 94% 93% Total 91% 89% Forest certification Biodiversity is an integral part of forest certifications, including protection of valuable ecosystems. To promote sustainable forest management practices and related positive impacts, Stora Enso has set a continuous target related to forest certification coverage level for the Group’s own and leased forest lands. The target relates to identified impacts in relation to its own and upstream value chain, and is aligned with Stora Enso’s Wood and Fibre Sourcing, and Land Management Policy. Target Scope Baseline year and value 2025 2024 Continuous target to maintain a forest certification coverage level of at least 96% Own and leased forest lands 2013: 93% 99% 99% In 2025, the coverage remained above the target level. Accounting principles The geographical scope of the target includes Stora Enso’s owned lands in Sweden, owned and leased lands in China, and owned and leased lands of its joint operations in Uruguay and Brazil. The forest certification scheme coverage is calculated based on the proportion of land owned or leased by Stora Enso that is covered by forest certification schemes. Reporting on total land area and its forest certification coverage is aligned with financial reporting on forests assets. When considering mitigation hierarchy, the target can be allocated to minimisation and restoration of impacts. Ecological thresholds and allocations were not considered when setting the target, and it is not based on conclusive scientific evidence. The basis for reporting (forest certificates: FSC and PEFC) is verified by accredited certification bodies, but the consolidated metric is not validated by an external body other than the assurance provider. External stakeholders were not included in the target setting. Biodiversity offsets were not used in the target setting. Sustainable forestry Stora Enso has a target on zero environmental non-compliances, as described in ESRS E2-3. Stora Enso defines a significant non-compliance related to forestry operations as a legal environmental non-compliance or permit violation, or a breach that has irreversible environmental or social impact. Biodiversity or forestry related significant non-compliance events Target Scope Baseline year and value 2025 2024 Continuous target of zero significant environmental non- compliance events Own operations 2017: 10 8 24 Of which related to sustainable forestry or biodiversity 1 12 The number of significant non-compliance cases related to sustainable forestry and biodiversity decreased significantly from the previous year, mainly due to a strong focus on incident prevention through enhanced training, revised work practices, and improved control mechanisms (see action 4 in E4-3). Ecological thresholds and allocations were not considered when setting the target, and it is not based on conclusive scientific evidence. External stakeholders were not included in the target setting. Biodiversity offsets were not used in the target setting. Location Description of the event Corrective and preventive measures Forest Finland A flying squirrel’s nesting place was impacted at one thinning location due to insufficient information about the species’ habitat. Harvesting was immediately suspended upon sighting, and the incident was reported to the authorities, who notified the police. The police have not yet investigated the case. Staff and vendor training was conducted to improve their ability to recognise flying squirrel habitats. Stora Enso’s procedures were updated to ensure prompt action on sightings of flying squirrels, including neighbouring properties near harvesting sites. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 109 ===== SIDA 110 ===== Impact metrics related to biodiversity and ecosystems change (E4-5) Stora Enso has selected three types of indicators to measure biodiversity based on their value for forest biodiversity according to science: • Biodiversity impact indicators monitor harvesting operations in the Northern forests as reported in ESRS E4-4. • Long-term biodiversity indicators follow developments in response to the biodiversity action programme in the Group’s own forest in Sweden. • Biodiversity indicators for tree plantations monitor developments in South American plantations, where biodiversity is protected and restored in dedicated set-aside areas. These metrics are not disclosed as part of Stora Enso’s Sustainability Statement due to the lack of direct operational control. Stora Enso exercises its ownership share to negotiate on the required actions to advance positive impacts. All these indicators have been used internally for years, but recently Stora Enso has started to report them externally on its website to enhance transparency. D e s c r i p t i o n s a n d i m p a c t e d h e c t a r e s o f b i o d i v e r s i t y - s e n s i t i v e a r e a s a f f e c t e d b y S t o r a E n s o s i t e s a r e d i s c l o s e d i n E S R S E 4 - 4. Key forest-related figures Accounting principles As wood is Stora Enso’s most important raw material, information on company-owned forest resources (type, standing stock, growth, harvesting, and certification) is essential for contextualising the biodiversity impacts of the operations. Aligned with the Financial Statements, the figures include the wood procurement of the joint operations according to the ownership share (50%). Wood procurement includes total amounts of wood (roundwood and chips) procured for delivery to Stora Enso’s units (million m3, solid under bark). The reporting on third-party certified wood as a percentage of total supply is based on actual deliveries to the mills. Internal deliveries between the mills have been eliminated. Metrics related to forest 2025 2024 Total amount of wood delivered to Stora Enso's sites, million m3 30.6 29.0 % of third-party certified wood of total wood supply 84% 85% % of wood from own sources or long-term supply agreements 35% 36% % of wood from managed semi-natural forests in Europe 85% 83% % of wood from tree plantations 15% 17% The estimated annual forest growth and total standing stock are counted for productive forest areas. Million m3 fo refers to million forest cubic meters. The annual forest growth figures are based on estimates, whereas the annual harvesting is based on actual data. Total standing stock and the related accounting principles are disclosed in the Financial Statements, note 4.2 Forest assets, section ‘Valuation and standing stock of forest assets’. Annual forest growth and harvesting and total standing stock, million m3 fo 2025 2024 Estimated annual forest growth 13.9 13.9 Stora Enso's own forests, Sweden 6.0 5.9 Guangxi 1.1 1.2 Veracel (50%) 2.2 2.3 Montes del Plata (50%) 3.0 2.9 Tornator (41%) 1.6 1.5 SESOM 2 AB (15%)1 0.0 n/a Annual harvesting 11.6 10.5 Stora Enso's own forests, Sweden 3.9 4.1 Guangxi 1.5 1.1 Veracel (50%) 2.1 1.6 Montes del Plata (50%) 2.7 2.4 Tornator (41%) 1.4 1.4 SESOM 2 AB (15%)1 0.0 n/a Total standing stock 198.4 214.6 Stora Enso's own forests, Sweden 133.3 153.7 Guangxi 3.6 4.2 Veracel (50%) 7.0 6.8 Montes del Plata (50%) 16.2 16.0 Tornator (41%) 35.1 33.8 SESOM 2 AB (15%)1 3.2 n/a 1 SESOM 2 AB is a 15% owned Swedish associate company. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 110 ===== SIDA 111 ===== Forests, plantations and lands as of 31 December 2025 Accounting principles To provide information on the extent of ecosystems, Stora Enso reports on entity-specific metrics on the hectares of the material forest lands. Figures for land areas, and their forest certification coverage, include Stora Enso’s own and leased forest assets. The figures measure area coverage, rather than condition of ecosystems. For additional information, see Financial Statements, note 4.2 Forest assets. Aligned with the Financial Statements, the joint operations and the equity- accounted investment in Tornator, Finland, are consolidated based on Stora Enso’s ownership stakes in these companies. Unit Area1 Certification coverage Details of local landscapes and protected areas Owned lands Swedish forest holdings 1,199,000 ha, of which 1,003,000 productive forest land PEFC and FSC for 1,199,000 ha Protected areas total to 324,000 ha and consist of productive or non-productive land which has been set-aside from wood production and infrastructure development either voluntarily or by legal requirements. Montes del Plata plantations and lands, Uruguay (50% owned joint operation with Arauco) 223,000 ha, of which 130,000 ha planted for pulp production PEFC and FSC for 222,000 ha Protected areas total to 90,000 ha and consist of remnants of native ecosystems, such as grasslands and riparian forests, within the company’s lands. Local landscape consists mainly of pasturelands and agricultural fields. Veracel plantations and lands, Bahia, Brazil (50% owned joint operation with Suzano) 206,000 ha, of which 78,000 ha planted for pulp production CERFLOR (PEFC) for 187,000 ha; FSC for 187,000 ha Protected areas total to 98,000 ha, including a 6,000 ha Private Natural Heritage Reserve, and mostly consist of native forest remnants at different stages of regeneration. Local landscape consists of pasturelands and agricultural fields cleared from Atlantic rainforest between the 1950s and 1980s. Tornator (41%-owned associated company) Finland 735,000 ha, of which 656,000 productive forest land PEFC and FSC for 735,000 ha Protected areas total to 75,000 ha and consist of productive and non- productive land which has been set-aside from harvesting either voluntarily or by legal requirements. Estonia 65,000 ha, of which 59,000 productive forest land PEFC and FSC for 65,000 ha Protected areas total to 2,400 ha. Romania 12,000 ha, of which 12,000 productive forest land PEFC and FSC for 12,000 ha Protected areas total to 160 ha. SESOM 2 AB (15%-owned associated company) Sweden 171,000 ha of which 148,000 ha productive forest land PEFC and FSC for 171,000 ha Protected areas total to 54,000 ha and consist of productive or non-productive land, which has been set-aside from wood production and infrastructure development either voluntarily or by legal requirements. Leased lands Plantations and lands, Guangxi, China 54,000 ha, of which 48,000 ha planted Chinese Forest Certification Council certificate (PEFC) for 54,000 ha; FSC for 54,000 ha Protected areas total to 7,200 ha and consist of buffer zones and other important areas for protection of watersheds and native flora and fauna. No pristine ecosystems are found in the leased lands. Local mosaic landscape includes agricultural crop fields, forest plantations, and settlements. Montes del Plata 84,000 ha, of which 72,000 ha planted PEFC and FSC for 82,000 ha Protected areas total 11,000 ha and consist of remnants of native ecosystems, such as grasslands and riparian forests. Local landscape consists mainly of pasturelands and agricultural fields. In most of the leased areas, protected areas are excluded from lease agreements. Veracel 29,000 ha, of which 12,000 ha planted CERFLOR (PEFC) for 15,000 ha; FSC for 15,000 ha Protected areas total to 13,000 ha and consist of native forest remnants at different stages of regeneration. 1 Reported as total areas of the companies. Stora Enso’s share corresponds to the ownership share. Includes operations where the size of the area exceeds 1,000 hectares. Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 111 ===== SIDA 112 ===== ESRS E5 Resource use and circular economy Policies related to resource use and circular economy (E5-1) The minimum requirement is that all policies and guidelines are to be reviewed at least once every two years. Each policy owner shall ensure that the documents under their responsibility are reviewed and updated within the defined time frame. Circularity Guidelines The Circularity Guidelines outline the Group’s commitment to contributing to a circular economy and addressing the opportunities and positive impacts outlined in the table ‘Material impacts, risks and opportunities’. The core principles of the guidelines encompass design for renewable and recycled materials, reducing the use of virgin material, a commitment to using fewer resources to produce a product, and designing out waste. The design for circular business models encompasses circular sourcing, which involves procuring products and services that align with circular economy principles. The guidelines cover the Group’s full materials value chain and all geographies. The accountability for ensuring their implementation lies with the EVP, Strategy and Sustainability. Environmental Guidelines The Environmental Guidelines describe the approach to environmental management (see ESRS E1-2). Related to circularity and resource use, the guidelines outline the commitment to use renewable wood-based resources – both virgin and recycled fiber – to promote circularity. This entails using of raw materials efficiently, reducing process residuals, reusing fiber, creating business opportunities from process residuals and by-products, and reducing waste to landfills to close to zero. Additionally, the guidelines emphasise seeking partnerships with stakeholders and customers to introduce new renewable products to the market. Stora Enso is committed to responsible sourcing to protect ecosystems, preserve biodiversity, and safeguard soil and water resources. The Group supports sustainable forest management and requires its external pulp suppliers to adhere to similar principles in wood and fiber procurement. The guidelines address the management of all the material impacts, risks, and opportunities listed in the table ‘Material impacts, risks and opportunities’. Actions and resources related to resource use and circular economy (E5-2) The actions described below support the objectives of both the Environmental Guidelines and Circularity Guidelines. Resource efficiency and side streams Stora Enso actively improves resource efficiency by investing in resource efficient processes and technologies, minimising waste, and converting production side streams into new products. Key actions from the reporting year include: 1) In 2025, Stora Enso began ramping up its new consumer packaging board production line in Oulu, Finland. The line utilises patented fibre processing technology that enhances material efficiency by enabling the production of stronger, lighter board while reducing raw material usage. 2) Stora Enso continuously aims to ensure that the value of materials is preserved by recycling of materials. For example, secondary raw material, Paper for Recycling, can be used to produce a range of paper and containerboard products. In Poland, the Group owns and manages a network of twelve depots, where Paper for Recycling is collected and baled for transportation to the Group‘s Ostrołeka site in Poland and to external PfR customers. 3) Stora Enso seeks efficient methods to improve material efficiency, recover material streams, and increase the value derived from wood and side streams, aligned with the process residual utilisation target (ESRS E5-3). Examples of co-operations from the reporting year include: Our year 2025 Our strategy Our people Governance Shareholders Report of the Board of Directors Sustainability Statement Financial Statements Appendices ≡ A s s u r e d 112 Material impacts, risks and opportunities (ESRS 2 SBM-3) Description Impact, risk, or opportunity Time horizon Location in the value chain Related sub-topic or sub-sub-topic Contribution to circular economy through renewable and recyclable products and solutions that replace fossil-based alternatives. Actual positive impact Short, medium, and long term Own operations, upstream and downstream value chain Resource outflows related to products and services Industrial operations require significant volumes of raw materials. While most of the total process material usage is based on renewable resources, sourcing these raw materials has an impact on the environment, for example, biodiversity (see ESRS E4). Actual negative impact Short, medium, and long term Own operations, joint operations, upstream value chain Resources inflows, including resource use Resource outflows from Stora Enso’s operations primarily stem from its products. While most of these products are technically recyclable, the actual product recycling d e p e n d s o n l o c a l r e c y c l i n g s y s t e m s a n d b r o a d e r s y s t e m - l e v e l c h a n g e s i n s o c i e t a l infrastructure. Actual negative impact Short, medium, and long term Downstream value chain Resource outflows related to products and services While most of the residuals from industrial operations are utilised in other production processes, waste is still generated and, where no other option exists, landfilled. Actual negative impact Short, medium and long term Own operations, joint operations Waste Dependency on upstream value chain for raw materials. Supply chain disruptions, increasing raw material costs or availability of materials, goods and services may adversely affect Stora Enso’s profitability. Risk Medium and long term Own operations, joint operations, upstream value chain Resources inflows, including resource use Stora Enso’s strategy is aligned with circular economy principles, focusing on generating revenue through renewable products. The Group’s wood-based products serve as carbon storage and can be recycled or converted into energy at the end of their lifecycle. Furthermore, Stora Enso actively supports recycling through strategic partnerships and investments in recycling infrastructure. The Group also sees opportunities in transforming process residuals into new products. Opportunity Short, medium, and long term Own operations, upstream and downstream value chain Waste; Resource outflows Regulatory changes and growing consumer demand for sustainable products present significant opportunities, creating competitive advantage by incentivising resource efficiency, recyclability, and renewability and driving market growth for renewable products. Opportunity Short, medium, and long term Own operations, upstream and downstream value chain Waste; Resource outflows ===== SIDA 113 =====