Norwegian technology developer Pherousa announced that it has developed & validated an ammonia cracking-based propulsion system, with plans to order six Ultramax vessels fitted with the technology. Grieg Maritime has ordered up to four ammonia-ready bulk carriers from China State Shipbuilding Corporation for delivery in 2026. And a new container ship design has been unveiled by the Mærsk Mc-Kinney Møller Center for Zero Carbon Shipping.

Swedish technology developer Metacon has delivered an ammonia cracking prototype unit to Pherousa Green Technologies in Norway for development of an ammonia-fed, zero emissions maritime propulsion system. The prototype itself was developed by Metacon subsidiary Helbio, who report the cracker achieves conversion rates of 99.3% with no ammonia slip, enabling it to feed a high-purity PEM fuel cell.