South Korea has carried out the world’s first ammonia bunkering demonstration for a vessel at Ulsan Port, marking a key step toward zero-carbon shipping.
The trial took place on April 23. Authorities used the pipe-to-ship (PTS) method to supply fuel directly from land-based facilities during sea trials.
The demonstration involved the ammonia-powered vessel ANTWERPEN, operated by EXMAR Shipping. The vessel is a 45,000 cbm LPG, ammonia and VCM carrier.
The ship measures 183.7 metres in length, with a beam of 30.4 metres and a depth of 18.8 metres. It has a deadweight of 33,045 tonnes and sails under the Belgian flag. Classification is provided by Lloyd’s Register. Delivery is scheduled for May 26, 2026.
During the trial, around 600 tonnes of ammonia were supplied. The vessel was built by HD Hyundai Heavy Industries.
The project supports global decarbonisation efforts. The International Maritime Organization targets carbon neutrality by 2050. Ammonia is gaining traction as a zero-carbon marine fuel.
The Ministry of Oceans and Fisheries led the initiative. It introduced temporary regulations and formed an expert group to ensure safe operations. Authorities worked with the Ulsan Port Authority and other local agencies.
Lotte Fine Chemical acted as the fuel supplier.
“We hope this demonstration will position our ports as hubs for eco-friendly marine fuels,” said Kim Hye-jung, Director General of Maritime Logistics. “We will continue to support green bunkering development.”
The government also reduced port fees to support the project.
The trial highlights growing momentum behind alternative fuels as the industry moves toward cleaner shipping.
