COMPANY
About Us

COMPANY

Our Story
The project is being developed and operated by a joint venture established by Mitsui & Co., Ltd., RWE Offshore Wind Japan Murakami Tainai K.K., and Osaka Gas Co., Ltd.
| Company Name | Murakami Tainai Offshore Wind Co., Ltd. |
|---|---|
| Incorporation | November 2024 |
| Address | Tokyo Office: 2-2-1 Otemachi, Chiyoda City, Tokyo 100-0004, Shin-Otemachi Bldg. 9F 105 Niigata Office: 2-4-10 Higashi-Odori, Chuo-ku, Niigata City 950-0087 Japan, Nihonseimei Niigata Building 9F |
| Core Activities | Development, construction, and operation of the Murakami Tainai Offshore Wind Project |
Our Shareholders
Mitsui & Co., Ltd
| Headquarters | 1-2-1, Otemachi, Chiyoda-ku, Tokyo 100-8631, Japan |
|---|---|
| Overview | Mitsui & Co., Ltd. is a leading Japanese general trading and investment company headquartered in Tokyo. The company operates in a diverse range of sectors, including energy, machinery, chemicals, and food, with a global presence spanning 125 offices across 61 countries. |
RWE Offshore Wind Japan Murakami-Tainai K.K
| Headquarters | 1-8-3 Marunouchi, Chiyoda-ku, Tokyo 100-0005, Japan, Marunouchi Trust Tower Main 5F |
|---|---|
| Overview | RWE Offshore Wind Japan Murakami Tainai K.K. is the Japanese subsidiary of RWE, one of Europe’s leading energy companies and the world’s second-largest offshore wind developer, operating 19 offshore wind farms with a total capacity of 3.3GW. The company is actively developing projects in onshore, offshore wind, and solar, as well as in alternative energy solutions, including battery storage and hydrogen, as part of its broader commitment to renewable energy. Drawing on its extensive offshore wind expertise, RWE oversees construction, installation, and O&M for this project. |
Osaka Gas Co., Ltd.
| Headquarters | 4-1-2, Hiranomachi, Chuo-ku, Osaka 541-0046, Japan |
|---|---|
| Overview | Established in 1897, Osaka Gas is a major energy company supplying city gas and electricity across Japan. Beyond its core gas business, Osaka Gas is actively involved in electricity generation and sales, as well as the development of renewable energy sources. The company is committed to contributing to a low-carbon and decarbonized society through its diverse energy solutions. |
At Murakami Tainai Offshore Wind K.K., we are dedicated to fostering strong local partnerships as we work toward a cleaner, more sustainable energy future.

