The three LNGCs, offering capacities ranging from 174 000 to 180 000 m3, will be built at Samsung Heavy Industries (SHI) and Hyundai Samho Heavy Industries (HSHI)'s. They will be fitted with the membrane containment system Mark III Flex. Their deliveries are expected for 2020. In addition, the latest evolution of the Mark III system, the Mark III Flex+ technology, has been chosen for the equipment of a first LNGC already included in the GTT order book – the Mark III variant permits a daily boil-off rate of 0.07%V.