ArcelorMittal: ArcelorMittal : Sustainability presentation - February 2025

Q2 Sustainable and 1H Development 2023 financial results Leadership presentation 11 February 2025 27th July 2023 Sustainable development highlights- 4Q 2024 Health & Safety: 2024 saw the completion of the dss+ group-wide safety audit, which was commissioned to help accelerate our progress to becoming a safer company. Business specific plans have been developed to implement the recommendations of the dss+ independent safety audit conducted in 2024 to support the Company's journey to zero fatalities. Key highlights of our progress this quarter include the health and safety assurance model which has been strengthened and the new Process Safety Framework which has been launched. LTIF rate 1 of 0.79x in 4Q 2024 (vs. 0.88x in 3Q 2024 and 1.34x in 4Q 2023) Decarbonization: ArcelorMittal continues to optimize its decarbonisation pathway to ensure competitiveness and an appropriate return on investment. Large scale decarbonization projects are advancing at a slower pace than originally anticipated due to insufficient policy/market developments. Electric arc furnaces now comprise 25% of our global production, up from 19% in 2018. Current investments are focused on the new EAF at Gijon (Spain) and the EAF expansion at Sestao (Spain) Low Climate Solutions We continue to lead the market with sales of our XCarb® low-carbon emissions steel , which have a carbon footprint of as low as 300kg per tonne of steel produced. XCarb® sales increased from 0.2Mt in 2023 to 0.4Mt in 2024. The Sestao revamp project is expected to materially increase the Company's ability to produce low carbon emissions flat products. Positioning our portfolio to capture demand from low carbon end markets ; electrical vehicles, insulation for low carbon buildings and renewables. We highlight our climate change adaptation solutions using sheet piles. Smarter steels for people and planet Page 2 1. LTIF rate = Lost time injury frequency rate defined as Lost Time Injuries (LTI) per 1,000,000 worked hours (own personnel and contractors); A LTI is an incident that causes an injury that prevents the person from returning to his/her next scheduled shift or work period. Health & Safety Journey to Zero Fatalities: Implementation of the audit recommendations is underway Business specific plans have been developed to implement the recommendations of the Company-wide safety audit Key highlights include: The new Process Safety Framework has now been launched with a first wave of 12 assets The health and safety assurance model has been strengthened , with three lines of assurance across all business units, to provide more comprehensive oversight starting in 1Q'25. The third line will report directly to the Board Progress in the development of 'One Safety Culture' across the Group will be measured in June 2025 ArcelorMittal employees were certified on the Life Saving Golden rules in 2024. The certification is designed to raise awareness of the importance of these rules and will be rolled out to regular contractors during 1H'25 Consequence management standards are becoming stronger across the Group as a result of our Just and Fair expectations rolled out in January 2025. Furthermore, we are tracking and auditing the compliance of local policies mirroring these expectations. We also continue to strengthen the health and safety focus in all our HR processes and practices. Group lost time injuries frequency rate (LTIFR) 1 3.2 3.0 2.8 2.6 2.4 2.2 2.0 1.8 1.6 1.4 Average LTIFR 1.2 post COVID: 1.0 2021-2024 0.78 0.8 0.6 0.70 0.4 0.2 0.0 2006 2008 2010 2012 2014 2016 2018 2020 2022 2024 Page 4 1. LTIFR = Lost time injury frequency rate defined as Lost Time Injuries (LTI) per 1,000,000 worked hours (own personnel and contractors); A LTI is an incident that causes an injury that prevents the person from returning to his/her next scheduled shift or work period Recommendations from the safety audit The recommendations are classified into six main areas: Improving the identification and understanding of operational risk exposure Strengthening the existing health & safety assurance model Continuing to embed safety values, mindsets and behaviours to strengthen the "one safety culture" Page 5 Improving contractor safety management standards Adopting industry best practices for Process Safety Management (PSM) Integrating health & safety elements into supporting business processes Risk Management Safety Culture Decarbonization ArcelorMittal focussed on economic decarbonization Enabling the Transition Disciplined, Competitive Fostering the Securing the resources Decarbonization Development of Supportive Environment Ability to pivot our portfolio to capture demand from low carbon emissions steel and growing energy infrastructure XCarb® sales growing in line with customer demand Increasing portfolio of climate solutions (electrical steels, renewables, insulation, adaptation from sheet piles) to support our customers Optimizing our decarbonization plans, focused on achieving an acceptable return on the capital to be invested Moving forward with economic projects: New 1.1Mt long products EAF in Gijon Converting pellet capacity to DR pellets in Canada Increasing EAF capacity to 1.6Mtpa in Sestao Advocating for a policy ecosystem that will support an acceptable return on investment in decarbonised capacity Policy engagement in Europe to ensure higher cost steel making can be competitive (e.g. low cost energy, trade support and market demand) Key updates in 2025: EU Steel safeguards; Clean Industrial Deal; Steel and Metals Action Plan; and CBAM Investing in the resources to support our decarbonization journey: Renewables to support electricity needs High quality metallics and increased scrap capacity both used for steelmaking in the electric arc furnace Consistent Capital Returns Company will maintain its focus on generating FCF and implementing its capital returns policy Page 7 Economic decarbonization progress since 2018 Decline in Group absolute CO2 emissions 1,2 → Primarily footprint and portfolio optimization ~50% 2018 2023 Economic decarbonization Investing in economic projects that will continue growth of XCarb ® offering: new 1.1Mt EAF in Gijon (Longs); increasing EAF capacity to 1.6Mtpa in Sestao (Flats) Securing resources $1bn investment in developing 2.1GW renewable energy portfolio: 1GW in India commissioned; equity investments in projects in Brazil and Argentina ~1.0Mt scrap capacity (EU/UK) secured 2.0Mt of HBI (high quality metallics) capacity in Texas acquired and operating at capacity $1bn decarbonization capex since 2018 DRI/ EAF engineering Sestao (Spain)/others 24% 28% Energy efficiency 3% 12% Increased scrap charge 3% 23% DR Pellet (Canada) 7% CCU (Gent) Gijon (Spain) % EAF share of group production XCarb ® sales (Mt) Carbon footprint as low as 300kg per tonne steel 2x >$100m 19% 25% 0.4 Total annual EBITDA 3 impact from EAF projects in Spain, CCU (Belgium) and 0.2 Canada DR pellets 2018 2024 2023 2024 Page 8 1. The 2018 baseline reflects assets owned by ArcelorMittal in 2018 and does not take into consideration footprint and portfolio optimization; 2. Scope 1 and 2; 3. Potential EBITDA impact from CCU (Gent), Sestao (Spain), Gijon (Spain) and Canada DR pellet project from 2026 Gijon Electric Arc Furnace - Construction ongoing Transforming the existing steel shop to low Carbon emissions production switching from coal to electricity (replacing blast furnace with EAF) An annual production capacity of 1.1Mt of semi- finished steel products, which will be supplied to the rail and wire-rod mills at the plant. Contribute to ability to meet demand for low-carbon emissions rails and wire rods in the automotive, construction and rail infrastructure sectors (particularly for public procurement contracts) The new EAF will lead to a reduction in CO2 emissions of over 35% → 1Mt CO2 emissions reduction a year once the transition phase has been completed Completion (first heat) expected in Q1 2026 Page 9 ArcelorMittal Sestao - Progressing expansion Producing low carbon emissions steel today An advantageous position as very few producers in Europe capable of producing low carbon emission flat steel via the Electric Arc Furnace route today (steel made using electricity rather than coal) Expanding production to 1.6mn tonnes by 2026 → much of this production will be XCarb® recycled and renewably produced low- carbon emissions steel Europe's first CSP mill (Compact Strip Production) line that combines continuous casting, heating and rolling of slabs An efficient plant that can produce steel from melting start to coiling finish in ~3 hours Compact strip mill benefits from energy saving vs conventional production → simplified and shortened production cycle minimizing reheating needs Page 10 Attachments Original document Permalink Disclaimer ArcelorMittal SA published this content on February 11, 2025 , and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on February 11, 2025 at 11:39:07.284 . Q2 Sustainable and 1H Development 2023 financial results Leadership presentation 11 February 2025 27th July 2023 Sustainable development highlights- 4Q 2024 Health & Safety: 2024 saw the completion of the dss+ group-wide safety audit, which was commissioned to help accelerate our progress to becoming a safer company. Business specific plans have been developed to implement the recommendations of the dss+ independent safety audit conducted in 2024 to support the Company's journey to zero fatalities. Key highlights of our progress this quarter include the health and safety assurance model which has been strengthened and the new Process Safety Framework which has been launched. LTIF rate 1 of 0.79x in 4Q 2024 (vs. 0.88x in 3Q 2024 and 1.34x in 4Q 2023) Decarbonization: ArcelorMittal continues to optimize its decarbonisation pathway to ensure competitiveness and an appropriate return on investment. Large scale decarbonization projects are advancing at a