ShinanenLtd. 

Sinanen Holdings Co., Ltd., established in Tokyo in 1927, operates both domestically and globally, engaging in a broad spectrum of energy and diversified non-energy enterprises. The company's energy sector is a prominent supplier of essential fuels, including LP gas, kerosene, gasoline, diesel oil, and fuel oil, catering to both residential and corporate customers, as well as marine vessels and service stations. It also distributes electricity to a wide range of clients such as businesses, local authorities, public bodies, and educational institutions. Additionally, Sinanen Holdings provides expert consultation and innovative solutions focused on minimizing energy expenses, reducing carbon emissions, and implementing energy-efficient systems. Beyond energy, Sinanen Holdings offers an extensive portfolio of non-energy services. These include home and building improvement solutions, such as renovations, housing equipment provision, household cleaning, and comprehensive facility management encompassing building maintenance, security services, various construction projects, and material supply. The company also markets specialized products like inorganic antimicrobial agents for use in plastics, fibers, and paints, and develops enterprise resource planning (ERP) systems tailored for the LP gas industry. Further contributing to sustainability, Sinanen Holdings is involved in waste recycling, producing fuels and materials from wood chips, waste plastics, and paper, and managing the intermediate processing of mixed waste. Other diversified offerings include the distribution of coal for consumer applications, the import and retail of bicycles, and complete HVAC services—covering installation, maintenance, and ongoing support for air conditioning, floor heating, and heat source equipment in both detached and multi-unit residences. The company also specializes in the maintenance of apartments and condominiums. Initially known as Sinanen Co., Ltd., the company officially adopted its current name, Sinanen Holdings Co., Ltd., in October 2015.