Company History

1950

• 1950/9

  Established Fuso Doboku Co., Ltd.

• 1959/6

  Established Komatsu Doro Kensetsu Co., Ltd.
  (wholly owned by Komatsu Ltd.)

1960

• 1960/5

  Merged Fuso Doboku Co., Ltd. and Komatsu Doro Kensetsu, and the resulting company was renamed Komatsu Fuso Construction Co., Ltd.

• 1961

  Awarded the Koura construction section of the Meishin Expressway.

• 1962/11

  The Company name was changed to Komatsu Construction Industry Co., Ltd.

• 1964

  Awarded the new construction of the Komatsu buildings and Meishin Expressway Komaki construction zone.

• 1966

  Construction began on Komatsu’s Oyama Plant.

• 1967

  Construction began on the Awazu and Osaka Plants of Komatsu.

1970

• 1970

  Executed the first construction project using the amphibious bulldozer (river channel maintenance).

• 1971

  Awarded the Higashi Osaka construction section of the Hanshin Expressway.

• 1973/7

  Established Komatsu Paving Co., Ltd.

• 1973

  Miyagi New Town Development, Nagayo New Town Development Construction, and Large-Scale Aquaculture Farm Development (use of the amphibious bulldozers).

• 1976

  Started the construction of the Awazu Plant General Office of Komatsu Ltd.

1980

• 1980

  Started the construction of the Komatsu Airport Terminal Building.

• 1982

  Started construction at Tokyo Disneyland (storm water discharge gate).

• 1983

  Started the construction of the new research laboratory and the small press assembly plant of Komatsu.

1940

• 1947/5

  Established Bulldozer Construction Co., Ltd.

• 1948

  The first private-sector company introduced foreign-made bulldozers.

1950

• 1956

  Developed large sites using heavy machinery (Matsushima Airfield).

• 1957

  Awarded the Japan’s first highway, the Yokohama Bypass Road.

• 1958

  Imported the first large bulldozer (Caterpillar D9) to Japan.

• 1959

  Construction begins on the Hachiro Lagoon land reclamation project.

1960

• 1961

  Constructed the Ayase section of the Shinkansen bullet train route and Takatsuki section of the Meishin Expressway.

• 1962

  Started development of copper mine using construction equipment, and expanded into offshore construction.

• 1964/2

  Listed on the First Section of the Tokyo Stock Exchange and Osaka Securities Exchange.

• 1965

  Began transporting limestone using a high-speed seagoing pusher barge.

• 1966

  Awarded large dams (Kisenyama Dam and Okuyama Dam), and introduced computers into dam construction for the first time (Kisenyama Dam).

• 1969

  The Company name was changed to Aoki Construction Co.

1970

• 1971

  Full-scale overseas expansion, and construction of the Taiwan Expressway Section 5.

• 1974

  Introduced a host computer, implemented a company-wide data communication network, and completed the construction of the Tsugaru Kaikyo Line Seikan Tunnel.

• 1976

  Opened the hotel in Brazil.

• 1978

  Awarded constructing a thermal power plant in Hong Kong, and constructed a large-volume earth and rock fill exceeding 20,000 m³ per day at the maximum point.

• 1979

  Awarded the construction of the rockfill dam in Panama.

1980

• 1987

  First Japanese company to be awarded the contract for the Panama Canal repair works.

• 1988

  Acquired the US hotel chain Westin Hotels, the largest M&A in the Japan’s history at that time.

1990

• 1990

  Started the construction of the Komatsu Electronic Metal Technical Center.

• 1991

  Constructed the Rokko Island Plant of Komatsu Ltd.

• 1996

  Sediment removal upstream of the Minashigawa No. 1 Sabo Dam was conducted using unmanned construction methods in response to the Mt. Unzen-Fugen eruption disaster.

2000

• 2000/10

  As a result of an M&A transaction, the company’s parent entity changed from Komatsu to Takamatsu Construction (now Takamatsu Construction Group).
  With Takamatsu Construction acquired 69.15% of the shares, the company became a part of the Takamatsu Construction Group.

2001

• 2001/4

  This transition led to the establishment of a new management structure within the Takamatsu Construction Group.

2002

• 2002/7

  Capital participation in Aoki Construction (30% investment in September), with Takamatsu Construction’s investing the remaining 70%.

• 2002/10

  The Company name was changed to Asunaro Construction.
  Takamatsu Construction formed the corporate group GWA (Green Wood Alliance) with Aoki Construction Co., Ltd.

2003

• 2003/5

  Headquarters relocated to Shiba, Minato-ku, Tokyo.

• 2003/11

  Announced merger with Aoki Construction.

• 2003/12

  Merger agreement signed.

1990

• 1990

  Two large hotels (Swan and Dolphin) opened in Disney World, Florida, USA, and awarded Kisarazu artificial island (now known as Umihotaru).

• 1993

  Completed the construction of Shin-Umeda City, and opened Westin Osaka.

2001

• 2001/12

  Made petition for the commencement of civil rehabilitation proceedings under the Civil Rehabilitation Law (September 2002 Termination of proceedings).

2002

• 2002/7

  The existing capital was 100% reduced, and new shares were issued through third-party allotment, setting the capital at 500 million yen. Additionally, convertible bonds with stock acquisition rights totaling 1.5 billion yen were issued, with Takamatsu Construction Co., Ltd. and Komatsu Construction Industry Co., Ltd. as underwriters.

2003

• 2003/5

  Headquarters and Tokyo Head Office relocated to Shiba, Minato-ku, Tokyo.