Mining
5 listed companies file under this classification in Japan.
The middle of this classification
We show the median, not the average. One very large filer would pull an average so far up that the ordinary company in this classification would disappear from the page.
| Median revenue | JPY 150.5bn | 4 of 5 reported a revenue line |
|---|---|---|
| Median net margin | 13.2% | 4 of 5 had both inputs |
| Largest filer's share of reported revenue | 52.2% | Japan Petroleum Exploration Co., Ltd. |
This is a description of the filings, not a ranking. We do not say which company is better placed, and a large share of revenue is not by itself good or bad.
Every company in this classification
Listed by name, not by size — we do not rank them.
| Company | Revenue (JPY bn) | Net profit (JPY bn) | Net margin | FY |
|---|---|---|---|---|
| INPEX CORPORATION | — | 93 | — | 2025 |
| Japan Petroleum Exploration Co., Ltd. | 340.3 | 55.7 | 16.4% | 2026 |
| K&O Energy Group Inc. | 91.4 | 9.2 | 10.1% | 2025 |
| Nittetsu Mining Co., Ltd. | 209.7 | 16.2 | 7.7% | 2026 |
| Sumiseki Holdings,Inc. | 10.7 | 2.6 | 24.8% | 2026 |