TSUNEISHI SHIPBUILDING Completes Full Acquisition of Mitsui E&S Shipbuilding

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  • TSUNEISHI SHIPBUILDING has acquired full ownership of Mitsui E&S Shipbuilding as of June 30, 2025.

  • The acquired company has been renamed TSUNEISHI SOLUTIONS TOKYOBAY Co., Ltd.

  • The move builds on a capital alliance established in 2021 to improve cost and technical collaboration.

  • The acquisition aims to strengthen long-term growth, competitiveness, and corporate value.

TSUNEISHI SHIPBUILDING Co., Ltd. has completed the full acquisition of Mitsui E&S Shipbuilding Co., Ltd. from MITSUI E&S Co., Ltd., effective June 30, 2025. Following the acquisition, the company has been renamed TSUNEISHI SOLUTIONS TOKYOBAY Co., Ltd. This move follows a capital alliance formed in October 2021, through which both companies have collaborated closely to combine cost competitiveness and technical expertise.

The full acquisition marks a step toward deeper integration, aiming to strengthen long-term sustainability and competitiveness. TSUNEISHI SHIPBUILDING plans to continue leveraging the combined strengths of both organizations to boost overall corporate value, according to a statement by TSUNEISHI SHIPBUILDING.

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Source: TSUNEISHI SHIPBUILDING