Tokyo – ClassNK has awarded an approval in principle (AiP) for the ammonia fuel supply system and ammonia gas abatement system developed by Mitsubishi Shipbuilding Co., Ltd. Ammonia is expected to be used as a ship fuel for decarbonization since it does not emit CO2 when combusted. Meanwhile, adequate safety measures are imperative as it has been pointed out that ammonia is toxic to humans and corrosive to materials. ClassNK has been involved in projects aiming for zero-emission ships using...