- CEO
- Hiroshi Majima
- Full Time Employees
- 12,113
- Sector
- Distribution services
- Industry
- Wholesale distributors
- Address
- 6-4, Hommachi 3-chome Osaka OS Japan 541-0053
- IPO Date
- Aug 10, 1962
- Business
- Iwatani Corporation engages in the integrated energy, industrial gases and machinery, and materials businesses primarily in Japan, with operations extending to China, Taiwan, South Korea, Singapore, Thailand, Malaysia, Indonesia, Vietnam, the United States, and Australia. Founded in 1930 and headquartered in Osaka, Japan, the company supplies liquefied petroleum gas under the MaruiGas brand for household, commercial, and industrial use; liquefied natural gas and petroleum products; household kitchen appliances and home energy components including Ene-Farm and gas heat pump air-conditioners; portable gas cooking stoves, cassette gas canisters, natural mineral water, health foods, and electricity; air separation gases such as oxygen, nitrogen, and argon; hydrogen, helium, carbon dioxide, semiconductor material gases, and medical gases; gas supply facilities, welding materials and equipment, pumps, compressors, industrial robots, disaster prevention equipment, high-pressure gas containers, semiconductor manufacturing equipment, factory automation systems, and environmental equipment; as well as functional plastics including PET and general-purpose resins, biomass fuels, secondary battery and semiconductor materials, electronic display films, mineral sands, rare earths, ceramics, stainless steel, aluminum, and non-ferrous metals. In recent developments, Iwatani acquired all shares of ISG Inc., an LP gas provider in Chiba Prefecture, Japan, on November 6, 2024, to integrate its regional customer base, enhance operational efficiency in Chiba and Ibaraki, and expand comprehensive energy and lifestyle services including home renovations and decarbonization initiatives; completed a 20% stake acquisition in Cosmo Energy in March 2024 to foster synergies in hydrogen stations, sustainable aviation fuel production, green propane, and carbon capture initiatives; announced on September 30, 2025, a collaboration with Toyota Tsusho and Eurus Energy for an onsite low-carbon hydrogen production project at Aichi Steel; invested in Caremag SAS in March 2025 to diversify rare earth sources; and relocated its Tokyo Head Office in June 2025.