GST® Membrane Full Integrity for Land Storage Licensed EPC contractors For many years, GTT has developed an active policy to provide technical assistance all over the world through license agreements for the use of Membrane Containment System. The following EPCs are licensed by GTT for the construction of Membrane Full Integrity system for Land storage tanks (January 2015) Licensed EPCs Head office Spain Acciona Engineering France Bouygues Travaux Publics Korea Daewoo Engineering & Construction China (Hong Kong) Energy World Corporation, (EWC) France Entrepose Projets Spain FCC Industrial China (P.R.) Hudong-Zhonghua China (P.R.) China Huanqiu Contracting & Engineering Corporation (HQCEC) Germany Linde Engineering Indonesia PT Rekayasa Industri France SAIPEM Korea Samsung C&T Corporation Canada SNC Lavalin Italia TECHINT Engineering & Construction Germany TGE Gas Engineering GmbH France Vinci Construction Grands Projets