Press Release

Weak volumes in difficult market conditions
Financial restructuring process engaged

CGG (ISIN: FR0013181864 – NYSE: CGG), world leader in Geoscience, announced today its 2016 fourth quarter and full-year unaudited results.

In Difficult Market Conditions

• High Q4 multi-client sales
• Solid 2015 EBITDA at $661m
• Successful €350m capital increase

FY 2015: Positive Operating Income1 and Solid EBITDAs1 Driven by a Strong Q4

• Revenue at $2,101m
• EBI

On February 6, 2017, CGG S.A. (“CGG”) announced a consent solicitation in respect of its Senior Notes (the “Notes Solicitation”).