For many years, GTT has developed an active policy to provide technical assistance all over the world for the maintenance and repair of membrane containment systems through specific agreements for repair shipyards and repair works subcontractors. The GTT approved partners are:

 

COUNTRIES APPROVED REPAIR YARDS APPROVED REPAIR WORKS SUBCONTRACTORS
China (P.R.) COSCO Shipping Heavy Industry (Zhoushan) ▪ COSCO Shipping Heavy Industry (Shanghai) ▪ Shekou Yiu Lian ▪ Guangzhou Wenchong Dockyard (GWD) ▪ Huarun Dadong Dockyard Co. Ltd. (HRDD) --
France Damen Brest ▪ Chantier Naval de Marseille (CNM) Marchani
Germany -- Turbo Technik
Japan Mitsubishi H.I. Yokohama --
South Korea -- DSEC
Malaysia Malaysia Marine and Heavy Engineering --
Oman Oman Drydock Company --
Portugal Lisnave --
Qatar Nakilat Keppel Offshore Marine --
Singapour Sembcorp Marine Admiralty Yard ▪ Sembcorp Marine Tuas Boulevard Yard ▪ Keppel Shipyard --
Spain Navantia El Ferrol Gabadi
United Arab Emirates Dubai Dry Dock --
Turkey Besiktas Shipyard  
Denmark Fayard