Iwatani Corp (Iwatani) is engaged in various business activities, primarily focusing on the energy, industrial gas, machinery, and materials sectors. The company provides LPG supply equipment, household kitchen appliances, home energy components, Ene-Farm, portable gas cooking stoves, detergent, health foods, hydrogen, helium, other specialty gases, gas supply facilities, welding materials, welding and cutting equipment, industrial robots, pumps and compressors, high-pressure gas containers, semiconductor manufacturing equipment, machine tools, sheet metal machinery, pharmaceutical and environmental equipment. It also provides resins, biomass fuels, battery-related materials, mineral sands, rare earths, ceramics materials, semiconductor materials, stainless steel, aluminum, and electronic display film. Iwatani's operations are structured to cater to both domestic and international markets.

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Iwatani's R&D arm focuses on the gas and energy fields, covering business domains such as the Integrated Energy Business, Industrial Gases & Machinery Business, and Materials Business. The company aimed to solidify its position as a leading hydrogen supplier by developing a hydrogen supply chain and new decarbonization technologies. Key initiatives included the development of hydrogen-refueling stations, heat exchangers, and filling technologies for liquid hydrogen, as well as synthesizing hydrocarbon fuels from biomass. The company also engaged in projects to expand the use of hydrogen energy and participated in a demonstration project to build a large-scale hydrogen supply chain. In the Integrated Energy Business, Iwatani Corp pursued technologies for manufacturing green LPG and conducted safety verification of gas appliances for mixed hydrogen and LPG. The Industrial Gases & Machinery Business focused on regenerative medicine, cell storage, and aquaculture technologies. The Materials Business advanced the development of nano nickel for use in multi-layer ceramic capacitors. Iwatani's R&D activities are primarily managed by the Iwatani R&D Center and the Iwatani Advanced Hydrogen Technology Center in Amagasaki, Hyogo Prefecture. The Iwatani R&D Center is responsible for developing new products and businesses, strengthening basic technologies, and improving technical services and product quality. The Iwatani Advanced Hydrogen Technology Center focuses on evaluating materials and equipment for hydrogen use, lowering costs of hydrogen-refueling stations, and developing technologies for liquid hydrogen commercialization. In FY2025, the company incurred a research and development expenditure of JPY2,589 million which was 0.3% of the company's total revenue and grew 15.2% YoY.