Suspension of trading shares request on November 13 2017

Paris, France | Nov 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) from November 13, 2017, at 9am, until the close of the Paris and New York Stock exchanges.