IHI Corporation manufactures heavy machinery. The Company produces aircraft jet engines, rocket propulsion systems, and ships for military and commercial use. Ishikawajima-Harima also constructs petroleum refineries and nuclear power plants. IHI researches, consults, engineers, manufactures and supplies a wide range of machinery, equipment, plants, structures, ships and offshore facilities. IHI and its group of companies actively promote the implementation of the state-of-the-art technologies to maximize project feasibility and at the same time minimize the environmental burden, in such fields as energy, marine transportation, material handling and aerospace.