Mitsui E&S

Mitsui E&S is a Japanese heavy industries company, listed in Tokyo under the code 7003, that grew out of the shipbuilding division of Mitsui & Co., set up in 1917 with its first shipyard at Tamano. It built the first Japan-built diesel-propelled merchant ship, the Akagisan Maru, in 1924, was renamed Mitsui Shipbuilding & Engineering in 1942, and over the following decades built ocean liners, tankers, bulk carriers and escort vessels for the Imperial Japanese Navy and the Japan Maritime Self-Defense Force. From 1967 it built container gantry cranes and now supplies nearly 90 percent of the Japanese market for them. It bought the engineering business of Burmeister & Wain in 1990, sold its naval shipbuilding business to Mitsubishi Heavy Industries in 2021, and passed its merchant shipbuilding to Tsuneishi Shipbuilding, which took full ownership in 2025, so that it now concentrates on ship engines, port cranes and other machinery, including through its wholly owned US subsidiary PACECO.