Kemira Investor Presentation

Strong start to the year Q1/2023 REVENUE AND ORGANIC GROWTH (Y-ON-Y) EUR million 906 -1% 1% 768 23% -7% Q1 2022 Sales volumes Sales prices Currency impact Others Q1 2023 OPERATIVE EBITDA BRIDGE EUR million -75 174 Organic revenue growth +17% in Q1 2023 Growth driven by higher sales prices in both segments. Market prices for caustic soda remained elevated during Q1 2023, but below exceptional levels seen during Q4 2022. Sales volumes declined following decline in Pulp & Paper. Industry & Water sales volumes stable as a whole. Organic revenue growth excluding the Oil & Gas business +14% in Q1 2023 Operative EBITDA reached a record-high of EUR 193 million Improvement in both segments and across product groups as higher sales prices more than compensated for higher variable costs. Caustic soda had a positive impact, but less than in Q4 2022. Operative EBITDA margin improved to a new high of 21.3% -23 6 -0 193 120 Q1 2022 Kemira Sales volumes APRIL 25, 2023 Sales prices Variable costs Fixed costs Currency impact Others Q1 2023 INVESTOR PRESENTATION 66

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