JDSC has transferred its entire stake in the maritime data platform Seawise to Tsuneishi Shipbuilding, increasing Tsuneishi's ownership to 80%, in a strategic move to optimize its business portfolio.

Target Information

JDSC Inc. has announced the transfer of its entire stake in Seawise, a maritime data platform based in Chiyoda, Tokyo, to the shipbuilder, Tsuneishi Shipbuilding Co., Ltd. This decision comes after JDSC evaluated the stability and self-sufficiency of Seawise's operations, leading to an optimization of its business portfolio through a stock transfer. JDSC will transfer 100% of its stake, which constitutes 40% of the company, effectively increasing Tsuneishi's ownership from 40% to 80%, thereby making Seawise a subsidiary of Tsuneishi.

Seawise was established in November 2022 as a joint venture among JDSC, Tsuneishi, and Mitsui & Co. The platform aims to address challenges in the maritime industry by utilizing artificial intelligence to enhance the operational value of vessels. Seawise provides shipowners with a data management and utilization infrastructure, supporting the maritime sector with innovative solutions. The company’s net assets are estimated to be approximately 595 million yen as of March 2025.

Industry Overview in Japan

The maritime industry in Japan is undergoing significant transformation, fueled by advancements in technology and increasing globalization. With a strong historical presence in shipbuilding and maritime logistics,