Singapore is the largest trans-shipment seaports in the world that has connectivity to 600 ports in over 120 countries. The country has a thriving maritime cluster that comprises over 5,000 maritime-related establishments contributing about 7% of the nation’s gross domestic product. With the growth in world trade and expanding future port activities, the Greenhouse Gases (GHG) emission from the local ports is expected to increase in tandem to support the wide range of essential port services. This is a challenge for Singapore and the maritime industry as global climate change agreements call for the reduction in GHG emission. This presentation will share some studies done by the centre on the sources of alternative fuels and its maritime applications, including Singapore’s context, shedding lights on the potential demand for green ammonia.