Who was appointed as the new Vice Chairman of SQM and when did the appointment take effect?

Hernán Büchi Buc was appointed as the new Vice Chairman of Sociedad Química y Minera de Chile SA (SQM) on May 26, 2026, following the resignation of Gonzalo Guerrero Yamamoto from the position of Vice Chairman.

What official document did SQM use to disclose this board leadership change?

SQM reported the leadership transition via a Form 6-K filing, which is a regulatory filing used by foreign private issuers to disclose material events to the U.S. Securities and Exchange Commission.

SQM Names Hernán Büchi Buc Vice Chair

May 27, 2026

SQM appointed Hernán Büchi Buc as Vice Chairman following Gonzalo Guerrero Yamamoto's resignation. The global lithium, iodine, and potassium nitrate producer confirmed the leadership transition via a Form 6-K filing.

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