CGG

Pre-Annual General Meeting Information • Apr 14, 2022

CGG

Société Anonyme with a share capital of €7,117,912 Registered office: 27 avenue Carnot, 91300 Massy Evry Trade and Company Register No.: 969 202 241

AVAILABILITY AND CONSULTATION OF THE PREPARATORY DOCUMENTS FOR THE CGG COMBINED GENERAL MEETING OF THURSDAY, MAY 5, 2022

Massy, France – April 14, 2022

The Combined General Meeting of CGG ("the Company") will be held on Thursday, May 5, 2022 at 10:30 a.m. at the Centre d'Affaires Paris Trocadéro, 112 avenue Kléber, 75116 Paris.

The meeting notice published in the Bulletin des Annonces Légales Obligatoires (BALO) on Monday, March 28, 2022 (Bulletin n°37) contains the agenda, draft resolutions and main terms and conditions for taking part in and voting at the Meeting. The convening notice will be published in BALO (Bulletin n°45) as well asin actu-juridique.fr on Friday, April 15, 2022.

The preparatory documents and information relating to the Combined General Meeting will be kept available for the Company's shareholders in compliance with applicable laws and regulations. The documents and information listed under article R. 22-10-23 of the French Commercial Code are available on the Company's website at the following address: https://www.cgg.com/investors/shareholderservices/general-meetings.

Contact CGG : Legal Department (Direction Juridique) 27 avenue Carnot 91300 Massy