Subsea 7 — Board/Management Information 2018

May 22, 2018

Subsea 7 S.A. announces Board responsibilities

Luxembourg - 22 May 2018 - Subsea 7 S.A. (Oslo Børs: SUBC, ADR: SUBCY, the Company) today announced an update to Board responsibilities following the changes to Board membership approved at the AGM held on 17 April 2017.

Allen Stevens has been appointed Senior Independent Director and will serve as Chairman of the Corporate Governance and Nomination Committee. David Mullen will serve as a member of the Corporate Governance and Nomination Committee. Niels Kirk will serve as a member of the Compensation Committee. All other responsibilities are unchanged.

Biographies for each of the Directors and full details of the membership of each committee can be found in the Corporate Governance section of the Company's website: www.subsea7.com

*************************************** Subsea 7 S.A. is a leading global contractor in seabed-to-surface engineering, construction and services to the offshore energy industry. We provide technical solutions to enable the delivery of complex projects in all water depths and challenging environments. Subsea 7 is listed on the Oslo Bors (SUBC), ISIN LU0075646355. ++++++++++++++++++++++++++++++++++++++

Contact for investment community enquiries: Isabel Green Investor Relations Director Tel +44 20 8210 5568 isabel.green@subsea7.com www.subsea7.com

Forward-Looking Statements: Certain statements made in this announcement may include 'forward-looking statements'. These statements may be identified by the use of words like 'anticipate', 'believe', 'could', 'estimate', 'expect', 'forecast', 'intend', 'may', 'might', 'plan', 'predict', 'project', 'scheduled', 'seek', 'should', 'will', and similar expr risks, uncertainties and assumptions. The principal risks and uncertainties which could impact the Group and the factors which could affect the actual results are described but not limited to those in the 'Risk Management' section in the Group's Annual Report and Consolidated Financial Statements 2017. These factors, and others which are discussed in our public announcements, are among those that may cause actual and future results and trends to differ materially from our forward-looking statements: actions by regulatory authorities or other third parties; our ability to recover costs on significant projects; the general economic conditions and competition in the markets and businesses in which we operate; our relationship with significant clients; the outcome of legal and administrative proceedings or governmental enquiries; uncertainties inherent in operating internationally; the timely delivery of vessels on order; the impact of laws and regulations; and operating hazards, including spills and environmental damage. Many of these factors are beyond our ability to control or predict. Other unknown or unpredictable factors could also have material adverse effects on our future results. Given these factors, you should not place undue reliance on the forwardlooking statements.