Usami Koyu Corp. is a Japan-based petroleum products company engaged in the distribution and retail of fuels and lubricants. The company operates a nationwide network of service stations and truck stops and supplies gasoline, diesel, kerosene, fuel oils, and lubricants to commercial fleets, industrial users, and other corporate customers.
Its operations span procurement, storage, wholesale and retail supply, and fuel logistics, including bulk delivery and on-site fueling services. In addition to conventional petroleum products, the company has been involved in initiatives related to lower-carbon liquid fuels in line with industry decarbonization trends. Usami Koyu plays a supporting role in transportation and industrial supply chains across Japan, including sectors that serve the broader chemical value chain.