Japan's K Line has assembled a heavyweight line-up for a new study into how ammonia can be developed as a marine fuel.
The group brings together shipowners, traders and port companies, as well as representatives from the energy, utilities and mining sectors.
US bulker owner Genco Shipping & Trading and Swiss charterer and owner Trafigura are joining the initiative, which involves 22 companies.
Bunker operators, chemicals companies and shipbuilders are also taking part.
The study will look at safety issues for the toxic chemical on board ships and during bunkering, as well as fuel specifications and CO2 emissions.