| Company Code | Company Name | Details |
|---|---|---|
| 1514 | Sumiseki Holdings, Inc. | Mining | TSE2(STANDARD) | Tokyo | Official Site |
| 1515 | Nittetsu Mining Co., Ltd. | Mining | TSE1(PRIME) | Tokyo | Official Site |
| 1605 | INPEX CORPORATION | Mining | TSE1(PRIME) | Tokyo | Official Site |
| 1662 | Japan Petroleum Exploration Co., Ltd. | Mining | TSE1(PRIME) | Tokyo | Official Site |
| 1663 | K&O Energy Group Inc. | Mining | TSE1(PRIME) | Tokyo | Official Site |