Press Release

CGG updated its voting form for the purpose of the extraordinary general meeting convened on second notice on November 13, 2017 (available via the following link), which states

CGG announces that a quorum of 22.48% of the share capital was present at the general meeting of shareholders held today, which allowed to vote on the ordinary part of the agenda, i.e. mainly approval of the 2016 accounts.

CGG announces completion of the Pre-Stack Depth Migration (PSDM) of its Cairenn multi-client survey in the Porcupine Basin, west of Ireland. Cairenn is the first of a series of multi-client surveys that CGG has recently been acquiring in the area.