The vessel will be the first of its kind in the world and will move large amounts of LNG in one shipment throughout northern Europe and will be used to supply the growing marine LNG market including those involved in Europe-Asia trade.
The new bunker vessel is to be managed by Mitsui's UK subsidiary MOL, and is scheduled to supply the new LNG mega-container vessels built by shipping group CMA CGM, under a 10-year contract with Total.
"This is a key milestone for MOL and also a stepping stone to further enhancement of the two companies' relationship of not only in conventional fuels but also LNG as a marine fuel," Mitsui senior managing executive officer Takeshi Hashimoto said.
The China-based Hudong-Zhonghua Shipbuilding has been chosen as the construction company and the vessel will be fitted with French company GTT's Mark III membrane containment system and measure about 135m when completed.
The contract between Total and Mitsui comes following the signing of a memorandum of understanding to jointly develop marine LNG infrastructures to meet future LNG supply.
Following the signing of the most recent contract Total managing director Olivier Jouny said it emphasised the company's commitment to LNG.
"Combined with our strong historical activity in the bunker industry and our global footprint in LNG, this pioneer agreement offers a major contribution to the development of LNG as a marine fuel," he said.