Shipping giant A.P. Moller – Maersk (Maersk) on Wednesday (15 July) it is continuing to explore ethanol as a marine fuel for the future and has scaled up its 100% ethanol bunker trials. Following successful trials on dual-fuel feeder vessel Laura Maersk , the company scaled up and bunkered its large dual-fuel vessel, Antonia Maersk , with 100% ethanol on 9 July at APM Terminals Barcelona at Port of Barcelona. “Drawing on our experience with methanol, we are working with port authorities and partners to establish the infrastructure and operational procedures needed to support ethanol bunkering at key ports,” the company said in a social media post. Ethanol is one of several pathways Maersk is exploring to diversify its low-emission fuel portfolio, with the ambition of enabling rapid uptake and helping create a new liquid marine fuel market. “Realising this ambition will require both continued investment across the value chain and the development of supportive regulatory frameworks,” it said. Manifold Times previously reported Maersk reporting that Laura Maersk successfully operated on 100% ethanol for a second time. The first trial , conducted in October and November last year, involved a 10% ethanol / 90% e-methanol blend and confirmed that ethanol can be safely and effectively integrated into the fuel mix. The test underscores the potential to create greater optionality for Maersk’s dual-fuel methanol fleet, essentially enabling dual fuel alcohol vessels. Later, the company blended 50% ethanol with 50% methanol in a test onboard the vessel Laura Maersk before working its way up to 100% ethanol. Related : Maersk changes blend ratio of ethanol and methanol in next level bunker fuel trial Related : Maersk advances ethanol fuel trials with larger-scale Rotterdam bunkering Related : Maersk adds ethanol to methanol in trial onboard dual-fuel containership   Photo credit: A.P. Moller – Maersk Published: 16 July, 2026