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 25, 2025

Document

Santiago, November 25, 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 announced that, in its ordinary session held today, the Board of Directors of Banco Santander-Chile resolved to postpone the extraordinary shareholders' meeting scheduled for December 10, 2025. The purpose of this meeting was to address 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. This postponement will allow the external evaluators of the transaction to update their reports with the subsidiary's 2025 results and projections, in order to determine whether any adjustments to the terms of the offer are necessary.

The new date will be announced in due course, taking into account the deadlines established by current regulations.

Sincerely,

Andrés Trautmann Buc

CEO

Banco Santander Chile