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Corporate Profile
Corporate Milestone
Corporate Milestone

Phase I: From foundation to development.
1) Foundation period: Mizuno-Gumi for river and marine projects.
- 1896
- First founded as Mizuno Gumi in Kure City, Hiroshima prefecture.
- Meiji era:
- Engaged in marine civil engineering projects, mainly for structures and facilities at navy bases throughout Japan.
- Taisho era:
- Expanded nationally ventured into land civil engineering and architectural projects.
2) Before WWII: Acquisition and improvement of mechanical facilities.
Constructed dredgers to strengthen the company position in the dredging and reclamation industry and launched the ship-building business.
Phase II: Recovery in postwar period and expansion of activities overseas and in Japan.
1) Recovery period: Involved in reconstruction efforts in postwar in Japan.
- 1945
- Commenced business in reconstruction of the company, aiming at marine civil engineering.
2) Oversees activities: Began business in overseas market.
- 1957
- Dispatched a technical advisory group to Goa, India to consult on berth construction project at the Port of Goa.
- 1961
- Constructed a turbine pump dredger, the Suez, and successfully won the Suez Canal dredging contract in international bidding.

Suez Canal dredging contact
3) Nationwide development: Expanding our business through M&A.
- 1968
- Absorbed Sakai Construction Co., Ltd., strengthening the company’s land civil engineering capabilities.
- 1969
- Absorbed Japan Land Development Co., Ltd. reinforcing our marine civil engineering capabilities.
- 1970
- Absorbed Jin Industrial Co., Ltd and second business in Hokkaido, expanding our business base to cover all of Japan.
4) Major period of growth in our overseas activities: Accepted a succession of orders in overseas market.
- 1970’s
- Accepted successive orders for large scale projects in Egypt, Singapore, Iraq and Qatar.
- 1975 - 1980
- Won the order for deepening and widening the Suez Canal, that amounted to a total of ¥106.6 billion. This project made the name of Penta-Ocean known throughout the world.
Phase III: Evolving into a general contractor by strengthening building construction abilities.
1) Into construction fields: Reinforcing construction department.
2) Growing into a general contractor: Comprehensive constructor having uniform capabilities.
- 1990’s
- The Company completed many large-scale projects, including the construction of high-rise buildings in Hong Kong and Singapore. In the domestic market, the Company accumulated sufficient experience in construction utilizing new technologies, such as high-rise buildings, seismic isolation, all-weather automatic construction systems, and was equipped with reliable technological background.
3) Beginning Penta-Ocean’s second century in business: To be a world class, technology based comprehensive construction company.
- 1998
- Received orders in Singapore for an opera house, the Esplanade-Theatres on the Bay , for ¥27 billion and large-scale reclamation work, Jurong Island Phase 3, for ¥100 billion.
Constructed a self-propelled dredger, Queen of Penta-Ocean, that is the most modern and largest of its kind in the world, and enabling the Company to receive large-scale reclamation works overseas. 
Esplanade-Theatres on the Bay
Phase IV: Rehabilitation and further development.
Emphasis on Profitability; Selection and Focus
- 2002
- Penta-Ocean announces the “Challenge 21” midium-term management plan Become a general engineering firm that contributes to a richer environment through construction.
- 2004
- Penta-Ocean achieves “Challenge 21” goals. Contraction in project volume offset by profitability in domestic construction market and reduction in expenses; operating income traces “v-shaped” recovery. Improvement in financial condition exceeds plan.
Toward becoming the No.1 Contractor in Coastal and Waterfront Areas
- 2005
- Penta-Ocean wins bid for Haneda Airport Runway D project
Penta-Ocean announces the “Evolution 21” midium-term management plan Penta-Ocean works to strengthen earnings in core businesses, and to improve financial position, capitalizing on a reputation as the No.1 contractor in coastal and waterfront areas. - 2006
- Yoshio Murashige named Penta-Ocean president
Penta-Ocean deals with dramatic changes in the construction industry environment that exceed the pace of change originally forecast in “Evolution 21”. - 2007
- Penta-Ocean conducts a two-for-one reverse stock split in conjunction with the adoption of an anti-takeover strategy
Penta-Ocean wins a nearly ¥67.8 billion bid for a development construction project at Singapore's Pasir Panjang Container Terminal
Not all original “Evolution 21” goals achieved; however, company financial stability achieved ahead of schedule - 2008
- Penta-Ocean announces the “Advance 21” midium-term management plan
To win in an era of technological competition as the No.1 contractor in waterfront and coastal areas.
(Engage in ethical corporate activities; advance as a technology-driven company; strengthen on-site management capacity)
Penta-Ocean wins a nearly ¥425.5 billion bid for the Maria Coastal Expressway, contract 485. (design, construction and completion of 700m of dual 5-lane vehicular tonnel structure, of which approximately 420m is below the marina Bay-crossing.) 
source: LTA HP
