CGG

Legal Proceedings Report • Nov 21, 2017

The Commercial Court of Paris indicated that it would render its judgement on the draft safeguard plan on December 1, 2017

Paris, France – November 21, 2017

During the hearing held on November 20, 2017, the Commercial Court of Paris indicated that it would render its judgment on the draft safeguard plan of CGG and the claim filed against it by certain holders of Convertible Bond, on December 1, 2017. The more detailed indicative timetable of the financial restructuring will be updated as soon as possible.

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 businesses of Equipment, Acquisition and Geology, Geophysics & Reservoir (GGR), CGG brings value across all aspects of natural resource exploration and exploitation. CGG employs around 5,400 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: 0013181864) and the New York Stock Exchange (in the form of American Depositary Shares. NYSE: CGG).

Contacts

Group Communications Christophe Barnini Tel: + 33 1 64 47 38 11 E-Mail: : invrelparis@cgg.com Investor Relations Catherine Leveau Tel: +33 1 64 47 34 89 E-mail: : invrelparis@cgg.com