The shipping industry is looking into ammonia as an alternative fuel for powering ships, amid other ongoing plans to cut carbon emissions and achieve net-zero by 2050.Here is a list of companies with ammonia-fuelled ship projects:NIPPON YUSEN KAISHA (NYK)NYK, with IHI Power Systems and Nippon Kaiji Kyokai (ClassNK), completed the world's first ammonia-fuelled tugboat, Sakigake, on Aug. 23.