Investor Presentaiton

Specialty Plant Nutrition: Demand and Sales Volumes Recovery SPECIALTY PLANTS NUTRITION LTM¹ Gross Profit US$264M LTM¹ Revenues: US$964M 11% 19% 8% 46% 15% ■Chile E Latam & Caribean ■Europe North America Asia and others ~45% Market Share² SQM Corporate Presentation SPN Quarterly Sales Volumes (KMT) & Average Price (US$/MT) $1,440 $1,410 $1,380 $1,310 $1,310 $1,120 $990 $940 $780 293 285 211 230 208 199 168 222 224 3Q2021 4Q2021 1Q2022 2Q2022 3Q2022 4Q2022 1Q2023 2Q2023 3Q2023 I Sales Volumes Avg. Price Global KNO3 Market The demand recovery seen during 3Q23 could continue into 2024. SQM KNO3 2023 Similar sales volumes are expected in the SPN business line in 4Q23 vs 3Q23. 1 Last twelve months ended September 30, 2023. 2 Market share in the agricultural potassium nitrate market 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. 9

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