Driving Sustainable Economies

Strengthening the foundation and improving profitability Organic growth / expansion of site Acquisition Operational efficiencies Closure of site / divestment AKD wax manufacturing JV deal closed (CN) Start-up of new AKD wax site (CN) Polymer investment decision, Mobile (US). Ramp-up of of new AKD wax site (CN) Ramp-up of of Botlek polymer facility (NL) Eastover Bleaching extension start-up (US) Joint Venture - Dry polymers (SK) 2020 2019 Chlorate and Completion of coagulant expansion (UK) Completion of dry- polymer capacity in Q2 (South Korea) Completion of emulsion polymer and BIO-AMD expansion in Q2 (US) 20 21 Closure of Pierre Bénite coagulant site (FR) 2022 SimAnalytics advanced process optimization start-up (FI) Strategic review of Oil & Gas business initiated 2023 Agreement to divest the majority of the colorants business Closing of the divestment of most of its colorants business to ChromaScape Start-up of Ortigueira sodium chlorate site (BR) Bradford polymer expansion (UK) San Giorgio polymer expansion (IT) Chevron CEOR deal & Botlek expansion (NL) Operative Start-up of Joutseno chlorate expansion (FI) Major oil sands tailings water treatment deal EBITDA (CA) 2018 2015: 12.1% 2017 2016 'Value over volume' initiated Two segment Transportation structure agreement with operational Odyssey go- live in Europe Odyssey Botlek modernization (NL) BOOST operational excellence program launch Closures of Ottawa (CA) and Zaramillo (ES), coagulants Odyssey go- live in North America Closing of ECOX detergent production (SWE) Move from 'Value over volume' to 'Active price management' Cost savings in Pulp & Paper Divestment of coagulant asset (IT) Divestment of Kemira Operon (water treatment facility operations) (FI) peroxide expansion on-going in Fray Bentos (UY) Goole coagulant expansion (UK) Raw material flexibility: - Coagulants to Magnetite - Bradford AN purification Operative EBITDA Q3 2023: 19.3% Kemira OCTOBER 24, 2023 INVESTOR PRESENTATION 14

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