Nagasaki Works

Creating the Future with Comprehensive Energy Technology

Nagasaki Works was established in 1857 as Nagasaki Yotetsusho, or steel works, and has developed into a central facility for machinery manufacturing. Globally, it plays a key role in terms of the innovation and development of thermal and geothermal power plants, fuel cells, and integrated coal gasification combined cycle power plants (IGCC).

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    • Area

      547,769 square meters

    • International Certifications

      ISO 9001 Quality Management System

      ISO 14001 Environmental Management System

Main Products




Selective Catalyst Reduction(SCR)


Selective Catalyst Reduction(SCR)

Steam Turbine


Steam Turbine

Gasifier, Heat Recovery Steam Generator


Gasifier, Heat Recovery Steam Generator

Fuel Cells


Fuel Cells

Boiler Machinery


Boiler Machinery


Axial Fans with Variable Rotor Blades

Control Systems


Plant Control Systems


1857 At the request of the Tokugawa Shogunate Government, a group of Dutch engineers led by Hendrik Hardes started construction of Nagasaki Yotetsusho (predecessor of Nagasaki Shipyard & Machinery Works).
1860 The foundry was renamed Nagasaki Seitetsusho and the ironworks was opened in March 1861.
1908 Japan's first power generating turbine (output 500kW) was completed through a technical tie-up with England-based Parsons & Company and installed at the central power station of Mitsubishi Shipyard.
1911 The first boiler was completed following acquisition of boiler production rights from England-based Nesdrum Boiler Manufacturing Company.
1934 The works was renamed Nagasaki Shipyard & Machinery Works.
1963 Machinery Division production facilities modernization (assembly, machinery and boiler shops) was completed. Brazil-based CBC Industrias Pesadas S.A. was acquired by the three companies of the Mitsubishi Group (Mitsubishi Heavy Industries, Ltd., Mitsubishi Corporation and Mitsubishi Electric Corporation) and made into the South American boiler production site.
1971 Boiler-Tube and Pipe-Header Shops were completed in the Fukahori/Koyagi areas (Nagasaki City).
1981 Works established in the Fukahori area for the exclusive production of large coal-fired boilers.
1993 Electronics Shop completed. MHI Technical Services Corporation (MTS; currently Mitsubishi Power Technical Services Corporation) established in the Philippines as an overseas design company.
2007 150th anniversary of works celebrated. Joint venture established with Larsen & Toubro Limited (L&T), a leading construction and heavy machinery company based in India.
2010 Joint venture with Larsen & Toubro Limited (L&T) starts local production of turbines and boilers.
2014 Mitsubishi Hitachi Power Systems, Ltd., a joint venture company formed by Mitsubishi Heavy Industries and Hitachi, integrating thermal power generation systems and other related businesses, established. Mitsubishi Hitachi Power Systems' Nagasaki Works was formed as a result.
2020 Established Mitsubishi Power, Ltd.
Mitsubishi Power's Nagasaki Works was formed as a result.


Akunoura Area

Address 1-1, Akunoura-machi, Nagasaki City, Nagasaki, 850-8610, Japan
Phone +81-95-828-6003
  • By bus

    Take a bus bound for Tategami, Kaminoshima or Nishidomari from in front of Nagasaki Station and get off at Iwasedo (about 20 minutes)

  • By taxi

    About 45 minutes from Nagasaki Airport

    About 10 minutes from Nagasaki Station

Koyagi Area

Address 180 Koyagi-machi, Nagasaki City, Nagasaki, 851-0393, Japan
  • By bus

    Take a bus bound for Koyagihonmura from in front of Nagasaki Station and get off at Nagahama or Koyagiguchi (about 55 minutes).

  • By taxi

    About 60 minutes from Nagasaki Airport

    About 35 minutes from Nagasaki Station