Investor Presentaiton

Lithium and Derivatives: Long-Term Fundamentals Support Demand Growth LITHIUM AND DERIVATIVES SQM LTM¹ Gross Profit: US$3.4B LTM¹ Revenues: US$6.9B 93% 5% 2% Europe North America Asia and others ~20% Market Share² $15 $8 Quarterly Sales Volumes (KMT) $38 & Average Price (US$/kg) $56 $54 $59 $51 $34 $30 22 31 38 34 42 43 32 43 43 3Q2021 4Q2021 1Q2022 2Q2022 3Q2022 4Q2022 1Q2023 2Q2023 3Q2023 Sales Volumes -Avg Price Global Lithium Chemical Market Estimated annual global EV sales growth ~35% in 2023. We expect the global lithium market demand to grow ~ 20% in 2023. SQM Lithium Slightly higher sales volumes in 3Q23, offset by lower sales prices. Our sales volumes could be lower in 4Q23 vs 3Q23. Majority of sales contracts are linked to price indices which follow market price trends. SQM Corporate Presentation 1 Last twelve months ended September 30, 2023. 2 Market share as of December 31, 2022. Market share percentages have been developed by us using internal and external sources and reflect our best current estimates, which have not been confirmed by independent sources. 5

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