CGG: Oceane 2019: adoption of the 24th resolution during the May 29th 2015 Combined AGM

Paris, France - 29 May 2015

The annual general shareholders' meeting of CGG (the "General Meeting"), chaired by Rémi Dorval, Chairman of the Board of Directors, was held on Friday 29 May 2015.

The General Meeting, deciding under the quorum and majority requirements for extraordinary shareholders' meetings, adopted in particular the proposed 24^th resolution, the purpose of which is to delegate its authority to the Board of Directors to issue bonds convertible into new shares and/or exchangeable for existing shares due January 2020 (the "2020 OCEANE") in the event of exchange offers initiated by CGG on its own OCEANE due January 2019 (the "2019 OCEANE"). 

Consequently, the simplified public exchange offer initiated by CGG for its 2019 OCEANE (the "Offer"), which was subject to the condition precedent of the adoption of the aforementioned resolution by the General Meeting, will open on 1^st June 2015 and close on 19 June 2015. 

The documents pertaining to the Offer (including the corresponding offer document drawn up on 28 May 2015) are available on the CGG website (www.cgg.com) and the French financial markets authority's (Autorité des marches financiers, the "AMF") website (www.amf-france.org).

About CGG

CGG (www.cgg.com) is a fully integrated Geoscience company providing leading geological, geophysical and reservoir capabilities to its broad base of customers primarily from the global oil and gas industry. Through its three complementary business divisions of Equipment, Acquisition and Geology, Geophysics & Reservoir (GGR), CGG brings value across all aspects of natural resource exploration and exploitation.

CGG employs over 8,500 people around the world, all with a Passion for Geoscience and working together to deliver the best solutions to its customers.

CGG is listed on the Euronext Paris SA (ISIN: 0000120164) and the New York Stock Exchange (in the form of American Depositary Shares. NYSE: CGG).