MIHO SHIPYARD Co., Ltd. (Head Office: Shizuoka City, Shizuoka Prefecture; hereinafter “MIHO”) is pleased to announce that it has completed the transition to 100% renewable electricity derived from hydropower across all its facilities, including production factories and employee dormitories. This shift is expected to reduce annual carbon dioxide emissions by approximately 730 tonnes, marking a substantial contribution towards the realisation of a decarbonised society.

Championing Local Energy Production and Consumption
The renewable electricity introduced is sourced from hydropower generated by the abundant water resources of the Fuji, Abe, Oi, and Tenryu rivers, all located within Shizuoka Prefecture. By adopting locally generated green energy, MIHO upholds the TSUNEISHI Group’s corporate values of “Being one with the community”. This initiative also reflects the company’s broader commitment to building a more sustainable future by fostering regional energy circulation.

Enhancing Energy Efficiency in Pursuit of Net Zero
In parallel with its transition to renewable energy, MIHO has implemented a range of energy-saving measures, including the use of Chubu Electric Power Miraiz’s energy visualisation services to optimise compressor operations and reduce night-time power consumption. These measures have led to notable reductions in both electricity use and CO₂ emissions. In recognition of its efforts, the company received the Chairman’s Award by The Energy Conservation Center, Japan, at the 2022 Energy Conservation Grand Prize.

Comment from Mr DANJO Akito, President, MIHO SHIPYARD Co., Ltd.
“At MIHO SHIPYARD, we have now achieved full transition to renewable electricity across all operations – from offices and production factories to staff accommodation. This marks a significant milestone in the TSUNEISHI Group’s journey towards carbon neutrality by 2050 supports our group-wide target of reducing CO₂ emissions (Scope 1 and 2) by 20% by 2030, compared to 2019 levels. While continuing to carry forward over a century of shipbuilding heritage, we remain firmly committed to advancing decarbonisation—within our local communities and across the global environment.”

■MIHO SHIPYARD Co., Ltd.
MIHO SHIPYARD Co., Ltd. (3797 Miho, Shimizu-ku, Shizuoka City, Shizuoka Prefecture) is a core company within the shipbuilding segment of the TSUNEISHI Group, which operates across the shipbuilding and maritime transport sectors. The company engages in the building and repair of vessels, and holds the leading market share in Japan for the building of fishing vessels such as tuna longliners and skipjack pole-and-line fishing boats. In addition to commercial vessels, MIHO SHIPYARD also constructs government vessels, including fishery patrol boats and other official craft.

President: DANJO Akito
Business: Shipbuilding and repair
Founded: July 1919 (Taisho 8)
Company info: https://www.mihoshipyard.com/index.html
Capital: 50 million yen
Employees: 148 (as of 1st January 2025)
Headquarters: Shizuoka City, Shizuoka Prefecture, Japan (Main Factory)
Shipbuilding Business Affiliates:
TSUNEISHI SHIPBUILDING Co., Ltd. (Fukuyama City, Hiroshima Prefecture, Japan)
https://www.tsuneishi.co.jp/english/

For further information, please contact:
Corporate Communication and Group Branding Dept.
TSUNEISHI HOLDINGS CORPORATION
Email: pr@tsuneishi.com