Mitsui & Co., Ltd. operates as trading company in Japan, Singapore, the United States, Australia, and internationally. It operates through Mineral & Metal Resources, Energy, Machinery & Infrastructure, Chemicals, Iron & Steel Products, Lifestyle, Innovation & Corporate Development, and All Other segments. The company engages in the manufacture and sale of steel products; steel processing, maintenance, and recycling; exploration, development, and production of oil and natural gas; trading and mar...