GTT announces that it has obtained, with its partner Hudong Zhonghua Shipbuilding Group Co. (HZ), a double Approval in Principle (AiP), from the classification Society China Classification Society (CCS) and DNV, for the “Ballast-Water-Free” LNG Bunker & Feeder vessel concept. The received AiPs recognize the compliance of this “Ballast-Water-Free” vessel design with the rules and …