Iwatani Corporation supplies gases and energy in Japan, China, Taiwan, South Korea, Singapore, Thailand, Malaysia, Indonesia, Vietnam, the United States, and Australia.

It operates through four segments: Energy, Industrial Gases & Machinery, Materials, and Agri-Bio & Foods.

The Energy segment offers LPG for household, commercial, and industrial use; LPG-supply equipment and facilities; LNG; petroleum products; household kitchen appliances; and home energy components, Ene farm, GHP, daily necessities, portable cooking stoves, gas canisters, mineral water, health foods, electricity, etc.

The Industrial Gases & Machinery segment provides air separation gases, hydrogen, helium, other specialty gases, gas supply facilities, welding materials, welding and cutting equipment, industrial robots, pumps and compressors, disaster prevention equipment, and high-pressure gas containers; and semiconductor manufacturing equipment, electronic component manufacturing equipment, factory automation systems, medicine and food packing machinery, environmental equipment, etc., as well as operates facilities for hydrogen stations.

The Materials segment provides PET and general-purpose resins, biomass fuels, secondary battery and semiconductor materials, electronic display films, mineral sand, rare earth, ceramics materials, stainless steels, aluminum, etc.

The Agri-bio & Foods segment offers frozen and chilled foods, agricultural equipment and materials, livestock related goods, etc.

The company was founded in 1930 and is headquartered in Osaka, Japan.