SQM (NYSE: SQM) advances Codelco lithium partnership via Nova Andino merger

Rhea-AI Filing Summary

Sociedad Química y Minera de Chile S.A. (SQM) reports that it has completed the structural steps of its strategic partnership with Chilean state-owned miner Codelco for the development of lithium and related activities in the Salar de Atacama. The partnership was formalized through the merger by absorption of Codelco’s subsidiary Minera Tarar SpA into SQM’s subsidiary SQM Salar SpA, which has been renamed Nova Andino Litio SpA.

The merger is still subject to a resolutory condition tied to a pending Supreme Court decision on an appeal related to a Chilean financial regulator resolution. The economic rights and preferences of the new share structure between Codelco (Series A) and SQM (Series B), including how dividends are calculated and paid, have been in effect since January 1, 2025. SQM and Nova Andino Litio SpA are working to determine dividends under this methodology and to assess the accounting impacts, which will be reflected in SQM’s consolidated 2025 financial statements and in Nova Andino Litio SpA’s own financial statements.

Insights

Latin America mining & governance analyst

SQM advances Codelco lithium partnership, with court outcome still pending.

SQM has operationally completed the merger that underpins its lithium-focused association with Codelco in the Salar de Atacama, consolidating assets into the renamed Nova Andino Litio SpA. This structure aligns mining, production, commercial, community, and environmental initiatives under a single vehicle, which can simplify coordination with Chile’s state interests.

However, the merger is expressly subject to a resolutory condition linked to a Supreme Court appeal concerning a Chilean regulator’s resolution. That means the legal framework could still change depending on the court’s decision, introducing an element of regulatory and legal uncertainty around the long-term stability of the arrangement.

The partnership’s share design—Series A for Codelco and Series B for SQM—has had its preferences and economic rights in force since January 1, 2025, including a defined dividend methodology. SQM and Nova Andino Litio are now calculating dividends and other accounting effects for inclusion in SQM’s 2025 consolidated financial statements, which should give more clarity on the economic distribution between the partners once those accounts are published.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

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 January 2026.

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)

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

SQM ANNOUNCES THE COMPLETION OF THE ASSOCIATION AGREEMENT WITH CODELCO

Santiago, Chile – December 27, 2025 - Sociedad Química y Minera de Chile S.A. (SQM) (NYSE: SQM; Santiago Stock Exchange: SQM-B, SQM-A) announces the completion of its strategic partnership with Corporación Nacional del Cobre de Chile (“Codelco”) for the development of mining, production, commercial, community, and environmental initiatives in the Salar de Atacama. This partnership has been formalized through the merger by absorption of Codelco’s subsidiary, Minera Tarar SpA, into SQM’s subsidiary, SQM Salar SpA, which has simultaneously changed its corporate name to Nova Andino Litio SpA.

The merger was executed under substantially the same terms outlined in the Partnership Agreement signed on May 31, 2024, previously disclosed and available at https://ir.sqm.com/es/informacion-relacionada-la-negociacion-con-codelco. However, the merger remains subject to a resolutory condition pending the Supreme Court’s decision on an appeal filed by Inversiones TLC SpA (Case No. 52.750-2025) against the ruling of the Santiago Court of Appeals dated November 11, 2025, in administrative litigation Case No. 508-2024, which rejected a claim of illegality related to Exempt Resolution No. 6,441 issued by the CMF on July 15, 2024.

As previously reported, the preferences and economic rights of Series A shares (Codelco) and Series B shares (SQM S.A.), as described in the Partnership Agreement, became effective on January 1, 2025. These rights include the distribution and payment of dividends according to the methodology established in the agreement. SQM and Nova Andino Litio SpA are currently working on determining the dividends to be distributed under this methodology, along with reviewing other accounting effects resulting from the merger. These will be reflected in SQM’s consolidated annual financial statements for 2025 and in Nova Andino Litio SpA’s financial statements.

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

Megan Suitor: megan.suitor@sqm.com

Media contacts:

Lithium Division: Ignacia Lopez / ignacia.lopez@sqm.com

Iodine- Plant Nutrition Division: Carolina Guzman / carolina.guzman@sqm.com

International Lithium Divicion: Diana WearingSmith / diana.wearingsmith@sqm.com

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

			CHEMICAL AND MINING COMPANY OF CHILE INC.
			(Registrant)
Date: January 12, 2025			/s/ Gerardo Illanes
			By: Gerardo Illanes
			CFO

Persons who are to respond to the collection of information contained SEC 1815 (04-09) in this form are not required to respond unless the form displays currently valid OMB control number.

FAQ

What strategic partnership did SQM (SQM) complete with Codelco?

SQM completed the structural steps of a strategic partnership with Chilean state-owned miner Codelco to develop mining, production, commercial, community, and environmental initiatives in the Salar de Atacama. This is organized through Nova Andino Litio SpA, the renamed subsidiary resulting from the merger of Codelco’s Minera Tarar SpA into SQM’s SQM Salar SpA.

What is Nova Andino Litio SpA in SQMs new structure?

Nova Andino Litio SpA is the new name of SQMs former subsidiary SQM Salar SpA, after it absorbed Codelcos subsidiary Minera Tarar SpA. It serves as the corporate vehicle for the partnership between SQM and Codelco in the Salar de Atacama.

Is the SQM and Codelco lithium partnership fully unconditional?

No. The merger is subject to a resolutory condition pending a decision by Chiles Supreme Court on an appeal related to administrative litigation over Exempt Resolution No. 6,441 issued by the Chilean Financial Market Commission (CMF). The courts ruling could affect the legal standing of the merger.

When did the new share rights between SQM and Codelco become effective?

The preferences and economic rights of Series A shares (held by Codelco) and Series B shares (held by SQM S.A.), as defined in the Partnership Agreement, became effective on January 1, 2025. These rights govern how dividends are distributed and paid between the parties.

How will the SQMCodelco partnership affect SQMs financial reporting?

SQM and Nova Andino Litio SpA are working on determining dividends under the agreed methodology and reviewing other accounting effects of the merger. These impacts will be reflected in SQMs consolidated annual financial statements for 2025 and in Nova Andino Litio SpAs own financial statements.

What industries does SQM serve beyond lithium?

SQM produces a range of products for industries tied to health, nutrition, renewable energy, and technology. It states an objective to maintain a leading global position in the markets for lithium, potassium nitrate, iodine, and thermo-solar salts.