
Aiming for a Leap to become a “Glocal Excellent Company”
Since our establishment in 1973, our company has primarily engaged in the maintenance and servicing of ships as well as the sale of ship parts, supporting the industrial infrastructure of the fisheries and maritime industries, while expanding our sales channels from domestic to overseas markets.
Amid the rapidly changing business environment, we aim to further promote globalization of our business. At the same time, domestically, as a company that stays close to local communities, we adopt sustainability as our basic slogan and strive for even greater development.
We also believe that the growth of our company is tied to the growth of our people. We are committed to creating an environment where each employee can demonstrate their abilities with pride and responsibility.
Moving forward, we will continue to value the technology and services that meet our clients' expectations, as well as reliability.
We sincerely ask for your continued support and guidance for Port Relief Engineering Co., Ltd.
Shingo Harima
President (CEO)
| Trade name | Port Relief Engineering Co.,Ltd. |
|---|---|
| Established | 24 Feb. 1973 |
| Location |
Head OfficeMAP Yokohama BranchMAP Shimonoseki BranchMAP |
| Authorized Capital | ¥40,000,000 of which ¥10,000,000 has been paid up |
| Directors | President Shingo Harima Director Toru Muraishi (Sales Dept.) Director Takanori Kuramoto (General Affairs and Accounting Dept.) Auditor Kouichi Mizushiro |
| Shareholder | Umios Corporation KYOKUTOH KAIUN K.K. |
| Bank | The Shoko Chukin Bank, Ltd. MUFG Bank Ltd. Mizuho Bank, Ltd. Japan Finance Corporation (JFC) |
Organization on Apr. 2026

| February 1973 | Established as a subsidiary company of Taiyo Fishery Co., Ltd. (Present: Umios Corporation) Specialized in repair of vessels owned by Taiyo Fishery Co., Ltd. and its related companies. |
|---|---|
| February 1978 | Shimonoseki Branch was established for the marketing of various machines in Kanmon District. |
| July 1982 | Began to offer the technical training for the foreign trainees in vited by Overseas Fishery Cooperation Foundation. |
| April 1984 | Purchased and fully equipped the present Yokohama Main Plant at 6-2 Torihamacho, Kanazawa-ku, Yokohama. |
| September 1993 | Exceeded 500 in the sale of HISUI. |
| April 2007 | Changed a Yokohama Factory into the Yokohama Branch. |
| July 2007 | Purchased a headquarters building and moved a head office to Tabata-Shinmachi, Kita-ku, Tokyo. |
| Feburuary 2009 | Consigned as a sales agent of The Hanshin Diesel Works, Ltd. in the territory of Tohoku, Japan. |
| October 2009 | Consigned as a sales agent of IHI Power Systems Co.,Ltd. |
| March 2010 | Consigned as a sales agent of Akasaka Diesel Ltd. in the territory of Hokkaido, Japan. |
| October 2011 | Established a PRE SEOUL office and started sales of engine spare parts for fishing vessels in Korea. |
| April 2018 | Consigned as a sole agent of Hitachi Nico Transmission Co.,Ltd. |
| Feburuary 2022 | 50th anniversary of the establishment of the company. |
| April 2022 | Junji Chino appointed sixth president. |
| December 2024 | Yokohama Branch Office renovation |
| March 2026 | Purchased a new head office building in Higashikomagata, Sumida-ku, Tokyo, and relocated. |
| April 2026 | Executive Director Shingo Harima becomes the 7th-generation president. |