Publication of a Supplementary Prospectus

Societe Generale

SG Issuer

07 April 2026

Publication of the Supplement dated 07 April 2026 to the Base Prospectus dated 30 May 2025 - Societe Generale and SG Issuer

The following supplementary prospectus (the Supplement) has been approved by the Financial Conduct Authority on 07 April 2026 and is available for viewing:

SUPPLEMENT DATED 07 APRIL 2026 TO THE BASE PROSPECTUS DATED 30 MAY 2025 IN RESPECT OF THE DEBT INSTRUMENTS ISSUANCE PROGRAMME OF SOCIETE GENERALE AND SG ISSUER

To view the Supplement, please paste the following URL into the address bar of your browser: https://prospectus.socgen.com/program_search/SG-SGIS%20UK%20DIIP%202025%202nd%20Supplement%20-%2007.04.2026

A copy of the Supplement will also be submitted to the National Storage Mechanism and will shortly be available for inspection at:  https://data.fca.org.uk/#/nsm/nationalstoragemechanism.

DISCLAIMER ‑ INTENDED ADDRESSEES

Please note that the information contained in the Supplement may be addressed to and/or targeted at persons who are residents of particular countries (specified in the Supplement) only and is not intended for use and should not be relied upon by any person outside these countries and/or to whom the information contained in the Supplement is not addressed. Prior to relying on the information contained in the Supplement, you must ascertain from the Supplement whether or not you are part of the intended addressees of the information contained therein.

Your right to access this service is conditional upon complying with the above requirement.