J-Power Systems Corporation

J-Power Systems Corporation is a Japan-based power cable specialist within the Sumitomo Electric Industries group. Established in July 2001 and commencing operations in October 2001, the company became a wholly owned subsidiary of Sumitomo Electric in 2014 following the transfer of shares from Hitachi Metals. Headquartered in Hitachi, Ibaraki Prefecture, it operates with capital of 100 million yen, employs approximately 50 people, and reported sales of 14.8 billion yen for the year ended March 2023. The company’s core business covers research, development, design, manufacturing, installation, sales and export of electric power cables and accessories, overhead power transmission lines, aerial cables and related systems. These products and systems support high‑voltage transmission and grid infrastructure for electric power utilities and other power sector customers in Japan and overseas. Within the Sumitomo Electric group, J-Power Systems is profiled specifically for the development, design and manufacture of power transmission cables, aerial cables, cable accessories and associated systems, reflecting a focus on technically demanding transmission applications. J-Power Systems extends its manufacturing and sales footprint internationally through group companies and affiliates. Finolex J-Power Systems Limited in India manufactures and sells power cables, while J-Power Systems Saudi Co., Ltd. in Saudi Arabia manufactures and supplies medium- and low-voltage submarine power cables for offshore platforms and acts as a primary local submarine cable supplier in the Middle East. Through this network, J-Power Systems contributes to power transmission infrastructure in multiple regions while maintaining its main engineering and corporate base in Japan.