GTT : NOTICE OF AVAILABILITY OF THE 2017 REGISTRATION DOCUMENT

NOTICE OF AVAILABILITY OF THE 2017 REGISTRATION DOCUMENT

Paris, April 26, 2018 - The 2017 registration document of GTT (Gaztransport & Technigaz), an engineering company specialised in the design of membrane containment systems for the transportation and storage of liquefied gas, was registered with the French stock market authorities (AMF) on April 25, 2018.

This document is available in French language for download on the "Finance" page of the GTT's website at www.gtt.fr. Hard copies of the French language registration document are also available at the GTT's registered office, 1 route de Versailles - 78470 Saint-Rémy-lès-Chevreuse, France.

An English language version of the 2017 registration document will soon be available on the GTT's website.

The following documents are included in the 2017 registration document:

• the annual financial report;
• the management report of the Board of Directors;
• the report by the Board of Directors on corporate governance;
• information on the fees paid to the statutory auditors;
• the social, environmental and societal information in the Board of Directors' management report;
• documents related to the combined shareholders' meeting to be held on May 17, 2018 (agenda, draft resolutions and report of the Board of Directors to the combined shareholders' meeting); and
• description of the share buyback program.

Financial agenda

• General Meeting of Shareholders: 17 May 2018
• Payout of the remainder of the dividend (€1.33 per share) for FY 2017: 31 May 2018
• Publication of the 2018 half-year results: 26 July 2018 (after the close of trading)

Investor Relations Contact

information-financiere@gtt.fr / +33 1 30 23 20 87

Media Contact:

press@gtt.fr + 33 1 30 23 42 26 / / +33 1 30 23 47 31

For more information, visit the GTT website, www.gtt.fr.

About GTT

GTT (Gaztransport & Technigaz) is an engineering company expert in containment systems with cryogenic membranes used to transport and store liquefied gas, in particular LNG (Liquefied Natural Gas). For over 50 years, GTT has been maintaining reliable relationships with all stakeholders of the gas industry (shipyards, shipowners, gas companies, terminal operators, classification societies). The Company designs and provides technologies which combine operational efficiency and safety, to equip LNG carriers, floating terminals, and multi-gas carriers. GTT also develops solutions dedicated to land storage and to the use of LNG as fuel for the vessel propulsion, as well as a full range of services.

GTT is listed on Euronext Paris, Compartment A (ISIN FR0011726835 Euronext Paris: GTT) and is notably included in SBF 120 and MSCI Small Cap indices.

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