GTT Gaztransport et Technigaz : obtains Approval in Principle from Bureau Veritas for the NO96 containment system application as LNG fuel tank for Ultra Large Container Vessels

Press Release

GTT obtains Approval in Principle from Bureau Veritas

for the NO96 containment system application

as LNG fuel tank for Ultra Large Container Vessels

Paris - January 14th, 2021. GTT has obtained approval in principle (AiP) for the NO96 membrane containment system for LNG fuel tank application for Ultra Large Container Vessel (ULCV) from Bureau Veritas (BV) classification society.

GTT and BV reviewed the compatibility and safe integration of the NO96technology as an LNG fuel tank in a container vessel hull. Over the course of the AIP study, a liquid motion assessment of the tank configuration has been performed.

Philippe Berterottière, Chairman and CEO of GTT, said: "We are pleased to receive this new Approval in Principle which allows GTT to offer increasingly competitive solutions that meet the requirements of the LNG market as a marine fuel. This will enable all our licensees1 to offer membrane solutions to this market."

Matthieu de Tugny, President Marine & Offshore at Bureau Veritas, said: "LNG is at the heart of the transition to a cleaner and more sustainable maritime industry. It is a pleasure, once again, to be able to support GTT with our expertize - encouraging innovation and the expansion of options available for LNG fuel containment systems."

About GTT

GTT (Gaztransport & Technigaz) is a technology and 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, ship- owners, 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.

For more information, visit www.gtt.fr.

Media contact:

[e-mail]/ [phone]

Investor Relations contact:

[e-mail]/+ 33 (0)1 30 23 20 87

1 Construction shipyards and outfitters who have signed a license agreement with GTT for the erection of its membrane containment systems