CGG: Suspension of trading shares request on November 13 2017

Suspension of trading shares request on November 13 2017

Paris, France - November 10, 2017

The general meeting of CGG which will be held on November 13, 2017 being crucial for the current restructuring process of CGG, the Company will ask for suspension of trading on the Company's shares (ISIN : FR 0013181864), the 2019 Convertible Bonds (ISIN : FR 0011357664) and the 2020 Convertible Bonds (ISIN : FR 0012739548) fromNovember 13, 2017, at 9am, until the close of the Paris and New York Stock exchanges.

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 5,500 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: 0013181864) and the New York Stock Exchange (in the form of American Depositary Shares. NYSE: CGG).

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