Company: SQM
Filing Date: 2025-06-02
Form Type: 6-K
Source: 0000909037-25-000028
Chunk: 0

Company: CHEMICAL & MINING CO OF CHILE INC
Filing Date: 2025-06-02
Form: 6-K
Chunk 0
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### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION
<div align='center'>Washington, D.C. 20549

Form 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

For the month of May 2025.

Commission File Number 33-65728

CHEMICAL AND MINING COMPANY OF CHILE INC.

(Translation of registrant’s name into English)

El Trovador 4285, Santiago, Chile (562) 2425-2000

(Address of principal executive office)</div>

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F:_ X _ Form 40-F

<div align='center'>Changes to the Board of Directors: New Chair and Vice Chair Appointed at SQM</div>

#### Santiago, Chile, May 27, 2025
–Sociedad Química y Minera de Chile S.A. (SQM) (NYSE: SQM; Santiago Stock Exchange: SQM-B, SQM-A) informs that on this date, Mr. Gonzalo Guerrero Yamamoto submitted his resignation from the position of Chairman of the Board of the Company, and Mr. Patricio Contesse Fica also submitted his resignation from the position of Vice Chairman of the Board of the Company. The Board, in a regular meeting, elected Mrs. Gina Ocqueteau Tacchini as new Chair of the Board and Mr. Gonzalo Guerrero Yamamoto as Vice Chairman.

About SQM

SQM is a global company that is listed on the New York Stock Exchange and the Santiago Stock Exchange (NYSE: SQM; Santiago Stock Exchange: SQM-B, SQM-A). SQM develops and produces diverse products for several industries essential for human progress, such as health, nutrition, renewable energy and technology through innovation and technological development. We aim to maintain our leading world position in the lithium, potassium nitrate, iodine and thermo-solar salts markets.

For further information, contact:

Gerardo Illanes / gerardo.illanes@sqm.com

Isabel Bendeck / isabel.bendeck@sqm.com

For media inquiries, contact:

Maria Ignacia Lopez / ignacia.lopez@sqm.com

Kathryn Ogilvie / kathryn.