Press Information

MHI to Establish Two New Wholly-owned Companies under Reorganization of its Shipbuilding Business
-- "Mitsubishi Shipbuilding Co., Ltd." to Focus on Ships Requiring High-density Outfitting and Environmental Measures, "Mitsubishi Heavy Industries Marine Structure Co., Ltd." to Develop Ships Operated by New Fuels --


・ Both new companies to be launched on January 1, 2018

・ Mitsubishi Shipbuilding will mainly construct ships requiring high-density outfitting

・ Mitsubishi Heavy Industries Marine Structure to build large ships and marine structures

Tokyo, December 1, 2017 - Effective January 1, 2018, Mitsubishi Heavy Industries, Ltd. (MHI) will establish two new wholly-owned companies in conjunction with reorganization of its shipbuilding business. Mitsubishi Shipbuilding Co., Ltd. will primarily undertake construction of ships that require intensive outfitting, and Mitsubishi Heavy Industries Marine Structure Co., Ltd. will mainly engage in the manufacture of large ships and marine structures.

Mitsubishi Shipbuilding Co., Ltd. will consolidate the current capabilities of MHI's various shipbuilding bases (Shimonoseki, Nagasaki, etc.) and function as a business company exclusively dedicated to shipbuilding. Its corporate name was chosen to reflect MHI's long history and traditions in shipbuilding. Applying MHI's prowess in engineering, the new company will grow business in ships that require intensive outfitting: ferries, vessels used by governmental agencies, etc. It will also make social contributions in areas impacting the environment, in a quest to achieve sustained development.

Mitsubishi Heavy Industries Marine Structure Co., Ltd. will carry on construction of large ships making use of the premises and human resources of the Koyagi Plant of MHI's Nagasaki Shipyard & Machinery Works. The new company will also expand business in units accommodating new fuels and manufacture of marine steel structures.

MHI will work closely with the two new companies, providing its total support toward the development of their business operations.

Profile of Mitsubishi Shipbuilding Co., Ltd.
Company name Mitsubishi Shipbuilding Co., Ltd.
Head office Mitsubishijuko Yokohama Bldg., 3-1, Minatomirai 3-chome, Nishi-ku, Yokohama, Kanagawa
Representative Koji Okura, President & CEO
Business operations Ship engineering
Design, manufacture and repair of ferries, cargo and passenger ships, RO/RO* ships, special-purpose vessels, patrol vessels, etc.
Employees Approx. 900
Establishment January 1, 2018
Capital 3,000 million yen (MHI: 100%)

* RO/RO (roll-on/roll-off) ship: a cargo ferry equipped with a ramp connecting the hull with the pier, enabling cargo-laden trucks to drive directly on and off the ship

Profile of Mitsubishi Heavy Industries Marine Structure Co., Ltd.
Company name Mitsubishi Heavy Industries Marine Structure Co., Ltd.
Head office 180, Koyagi-machi, Nagasaki City, Nagasaki
Representative Kunio Shiiba, President & CEO
Business operations Construction of large ships, manufacture and repair of marine structures
Employees Approx. 600
Establishment January 1, 2018
Capital 300 million yen (MHI: 100%)

About MHI Group

Mitsubishi Heavy Industries (MHI) Group is one of the world’s leading industrial groups, spanning energy, smart infrastructure, industrial machinery, aerospace and defense. MHI Group combines cutting-edge technology with deep experience to deliver innovative, integrated solutions that help to realize a carbon neutral world, improve the quality of life and ensure a safer world. For more information, please visit or follow our insights and stories on