Press Release

CGG SA announces that all creditor classes entitled to vote on the chapter 11 plan proposed in the chapter 11 cases commenced on 14 June 2017 in the US Bankruptcy Court for the Southern District of New York by CGG SA’s 14 main foreign, direct and indirect subsidiaries, each a borrower or guaranto

CGG announces that, today, the Autorité des marchés financiers granted visa n°17-551 to the prospectus (in the French language) made available to the public in connection with:

CGG has successfully completed acquisition of the first-ever full-scale commercial survey using TopSeis™, its latest offshore broadband seismic acquisition and imaging solution.