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OKI to build new production building at Numazu Plant for defense underwater acoustics

OKI Electric Industry Co., Ltd.Numazu, ShizuokaPublished
Investment¥3B
PhasePlanned
StartJul 2026
CompletionSep 2027
Construction
Today
2027

About 11 months to scheduled completion.

OKI will construct a new three-story production building at its Numazu Plant in Shizuoka Prefecture, which manufactures underwater acoustic systems and sensors, to strengthen production capacity for expanding defense demand and dual-use civilian applications such as ocean resource development. The investment is approximately JPY 3 billion, with the new building increasing production of sonar and sonobuoys by about 50% versus FY2023 levels while incorporating energy-saving and solar power facilities targeting ZEB/ZEH standards.

Project facts

Owner
OKI Electric Industry Co., Ltd.
Listing
6703 Tokyo
Facility
Factory/Plant
Sector
Other manufacturing
Location
Numazu, Shizuoka, Japan
Investment
¥3B — total
Scale / capacity
approx. 50% increase in underwater acoustic sensor (sonar, sonobuoy) production vs FY2023
Construction start
Jul 2026
Completion
Sep 2027
Announced
Apr 15, 2026
Themes
defense

Figures and schedules are as announced by the company or the public body concerned; plans can change. Amounts that were not disclosed are recorded as not disclosed, never estimated.

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