SQM REPORTS EARNINGS FOR THE FIRST QUARTER OF 2010

Santiago, Chile, May 25, 2010.-SQM reported today earnings for the first quarter of 2010 of US$76.5 million (US$0.29 per ADR), a decrease of 13.5% with respect to the same period of 2009, when earnings totaled US$88.4 million (US$0.34 per ADR). Gross Margin reached US$131.5 million (33.8% of revenues), 7.5% lower than the US$142.1 million (44.2% of revenues) recorded during the first quarter of 2009. Revenues totaled US$388.5 million for the first quarter, representing an increase of 21.0% over the US$321.1 million reported in the same period of 2009.

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New joint venture SQM STAR officially launched in China Late March 31st, SQM Star, a joint venture between SQM and Qingdao Star Cropscience Co., Ltd. was officially launched during a ceremony held in Qingdao, Shandong province, China.		LATEST NEWS 14 - Apr 144A Bond Pricing 08 - Apr Financial Transaction 26 - Mar SQM reports no damage to its facilities 24 - Mar SQM Teams-up with the Porcelain Enamel Institute 24 - Mar Presentation Larraín Vial Conference 1 - Mar SQM reports no damage to its facilities 23 - Feb SQM announces changes to El Toco and Pampa Blanca operations 08 - Jan SQM signs joint venture agreement with Qingdao Star 08/01/2010 New Joint Venture boosts SQM's position as worldwide market leader 10 - July SQM files its 2008 Annual Report on form 20-F 28 - May SQM signs Joint Venture agreement with Coromandel 08 - May SQM bond issuance in local market 07 - May SQM announces bond issuance 30 - Sept SQM ANNOUNCES NEW LITHIUM PRICES 30 - Apr SQM announces supply contract with PCS