Tokyo Electric Power Company Holdings, Inc.
As of the end of FY2023
| Company Name | Location | Capital (Japanese companies：million yen) |
Description of Major Business | Ratio of voting rights owned by TEPCO Group - The number shown in the parentheses “( )” indicates the indirect ownership ratio and is included in the left ratio. |
|
|---|---|---|---|---|---|
| TNcross Corp. | Chiyoda-ku, Tokyo | 300 | Creation of infrastructure-based services and planning and demonstration of new businesses | 50.00% | - |
| Fukushima Power Transmission Co.,Ltd. | Fukushima-shi,Fukushima | 13 | Design, construction and operation of transmission lines/substations in mountainous areas around the Abukumagawa River and along the coast of Fukushima Prefecture Purchase of seismic preparedness systems | 42.61% | - |
| Yamanashi Hydrogen Company, Inc. | Kofu-shi, Yamanashi | 100 | Generate, supply, and wholesale of hydrogen and ammonia as well as energy service related operation | 25.00% | - |
| Nuclear Fuel Transport Company, Ltd. | Minato-ku, Tokyo | 1,600 | Handling and land/ocean transport of spent fuel and radioactive waste from nuclear power stations | 20.64% | - |
| JAPAN NUCLEAR SECURITY SYSTEM CO., LTD. | Minato-ku, Tokyo | 200 | Designing, construction, leasing and operations of protective systems for nuclear-related facilities, Security guard for nuclear fuel transportation | 20.00% | - |
| International Nuclear Energy Development of Japan Co., Ltd. | Minato-ku, Tokyo | 100 | Makes proposals for receiving nuclear power plant project offers from countries looking to build a nuclear power stations | 22.00% | - |
| SAP-Japan Co., Ltd. | Chiyoda-ku, Tokyo | 10 | Investment to a management company (in Kazakhstan) of sulfuric acid manufacturing plants | 18.75% | - |
| Harajuku no Morimamoru, Co., Ltd. | Taito-ku, Tokyo | 100 | Businesses related to the Jingumae 1-chome Development Project | 34.00% | (34.00%) |
| Hakusan Corporation | Fuchu-shi, Tokyo | 80 | Development/manufacturer/sale of products and systems for preparedness and geophysical prospecting, and information provision services | 35.87% | (35.87%) |
TEPCO Power Grid, Inc.
As of the end of FY2023
| Company Name | Location | Capital (Japanese companies：million yen) |
Description of Major Business | Ratio of voting rights owned by TEPCO Group - The number shown in the parentheses “( )” indicates the indirect ownership ratio and is included in the left ratio. |
|
|---|---|---|---|---|---|
| SHIN-NIHON HELICOPTER CO., LTD. | Koto-ku, Tokyo | 250 | Patrolling of power transmission lines by helicopter and transportation of construction materials | 50.00% | (50.00%) |
| Rakuten Mobile Infra Solution, Inc. | Setagaya-ku, Tokyo | 300 | Construction of cell phone base stations | 49.00% | (49.00%) |
| Grid Sky Way LLP | Minato-ku, Tokyo | 2,800 | Verification of use cases and establishment of utility aimed at constructing flight route platforms to support beyond the visual line of sight (BVLOS) drone flights | 23.53% | (23.53%) |
| Daido Industrial Arts Co., Ltd. | Katsushika-ku, Tokyo | 10 | Creation of utility pole advertising products | 35.37% | (35.37%) |
| GDBL Corp. | Chiyoda-ku, Tokyo | 100 | Processing, analysis and sale of various data, including electric power data, and planning, development and provision of services using various data, establishment and operation of a platform to provide electronic tools to be used for various data, including electric power data. | 33.40% | (33.40%) |
| The Japan Utility Subway Company, Incorporated | Chuo-ku, Tokyo | 1,400 | Establishing and operating a platform to provide electronic tools to be used for various data, including electric power data. | 29.44% | (29.44%) |
| Tower Line Solution Co., Ltd. | Toshima-ku, Tokyo | 98 | Construction and maintenance related to electric facilities for transmission, telecommunication and others | - | - |
| Toshiba Toko Meter Systems Co., LTD | Hasuda-shi, Saitama | 100 |
Development, production and sales of measuring instruments (including some components of measuring instruments) | - | - |
TEPCO Energy Partner, Inc.
As of the end of FY2023
| Company Name | Location | Capital (Japanese companies：million yen) |
Description of Major Business | Ratio of voting rights owned by TEPCO Group - The number shown in the parentheses “( )” indicates the indirect ownership ratio and is included in the left ratio. |
|
|---|---|---|---|---|---|
| TI Current Co., Ltd. | Minato-ku, Tokyo | 20 | Nationwide development of ES business, provision of heat to redevelopment areas | 50.00% | (50.00%) |
| Mitsu Real Estate TEPCO Energy Co.,Ltd. | Chuo-ku, Tokyo | 100 | Business related to electricity supply | 50.00% | (50.00%) |
| Prime Solutions Co.,Ltd. | Minato-ku, Tokyo | 30 | Telecommunications, computer communications system planning, design, development and consulting, etc. | 37.50% | (37.50%) |
| HP Capital Co., Ltd. | Minato-ku, Tokyo | 118 | The ownership and trading of securities, and other investment activities | 33.33% | (33.33%) |
| Houseplus Architectural Inspection, Inc. | Minato-ku, Tokyo | 300 | In relation to the Building Standards Act, including testing / assessment, the environment and the existing stock of buildings | 26.67% | (26.67%) |
TEPCO Renewable Power, Inc.
As of the end of FY2023
| Company Name | Location | Capital (Japanese companies：million yen) |
Description of Major Business | Ratio of voting rights owned by TEPCO Group - The number shown in the parentheses “( )” indicates the indirect ownership ratio and is included in the left ratio. |
|
|---|---|---|---|---|---|
| TetraSpar Demonstrator ApS | Denmark | 1.45 mil. Euro |
TetraSpar floating offshore wind foundation demonstration project | 21.65% | (21.65%) |
| Aqua Connect Namie Corporation | Yokohama-shi, Kanagawa | 10 | Hydroelectric power generation businesses | 44.00% | (44.00%) |
