In July 2023, the Marine Environment Protection Committee (MEPC) of the International Maritime Organization (IMO) adopted the 2023 IMO GHG Reduction Strategy aiming to achieve zero GHG emissions from international shipping by 2050. As the approach to convert conventional heavy oil fuel to gas fuels such as LNG and ammonia is gaining momentum as a means of low-carbonization and decarbonization of ships, gas handling technology for safe and appropriate handling of gas fuels is becoming increasingly important. This report provides an overview of gas handling technology and presents its product development.