6-K

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

Form 6-K

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934

For the month of November, 2025

Commission File Number: 001-14554

Banco Santander-Chile

Santander-Chile Bank

(Translation of Registrant’s Name into English)

Bandera 140, 20th floor

Santiago, Chile

Telephone: 011-562-320-2000

(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 ☒    Form 40-F ☐

EXHIBIT INDEX

SIGNATURE

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.

Date: November 21, 2025

Document

Santiago, November 21, 2025

Mrs.

Solange Berstein Jáuregui

President

Financial Markets Commission

Present

Mrs President,

In accordance with Articles 9 and 10 of Law No. 18,045, it is hereby informed that, regarding the extraordinary shareholders' meeting of Banco Santander - Chile, convened for December 10, 2025, at 3:00 p.m., to decide on the offer from Getnet Payments, S.L. to Banco Santander-Chile and Santander Asesorías Financieras Limitada for the purchase of 49.99% of the shares of the subsidiary Sociedad Operadora de Tarjetas de Pago Santander Getnet Chile S.A. and its terms and conditions, the decision of the directors of Banco Santander-Chile regarding this transaction is available at the bank's offices and on its website, hyperlink https://ir.santander.cl/junta-de-accionistas?lang=es-CL, pursuant to Article 147 No. 6 of Law 18,046.

Sincerely,

Guillermo Sabater Maroto

Deputy CEO

Banco Santander Chile