BANCO SANTANDER S.A.

POLISH FINANCIAL SUPERVISION AUTHORITY

UNI - EN REPORT No 11 / 2023

Date of issue: 2023-02-07

Short name of the issuer

BANCO SANTANDER S.A.

Subject

Banco Santander, S.A. announces that it has launched voluntary tender offers to acquire all of the Series B shares and American Depositary Shares of Banco Santander México, S.A. not already held by Banco Santander, S.A.

Official market - legal basis

Unofficial market - legal basis

Contents of the report:

The content of the report is enclosed hereto. Official market - legal basis: other regulations

Annexes

File Description

11-2023.pdf Content of the report

BANCO SANTANDER S.A.

(fullname of the issuer)

BANCO SANTANDER S.A.

(short name of the issuer) (sector according to clasification of the WSE in Warsow)

39004 Santander

(post code) (city)

Paseo de Pereda 9-12

(street) (number)

(0034) 91 259 6520 (0034) 91 257 0245

(phone number) (fax)

(e-mail) (web site)

A39000013

(NIP) (REGON)

SIGNATURE OF PERSONS REPRESENTING THE COMPANY

Date Name Position / Function Signature

2023-02-07 Łukasz Siwek Attorney-in-Fact