As reported to FSS/DART, 2025-12-31.
| Largest shareholder group | 38.73% |
|---|---|
| Minority shareholders | 56.01% |
| Top 10 holders | 38.73% |
| Total shareholders | 6,831 |
How to read this: the largest shareholder group is the controlling owner and related parties — a big slice means tight control. Minority shareholders are the many small holders. The remainder is mostly institutional and foreign money, which the regulator does not itemise separately.
| Investor category | Holding % | Shareholders |
|---|---|---|
| Minority shareholders | 56.01% | 6,825 |
| Largest shareholder & related parties | 38.73% | — |
| Institutions & other holders | 5.26% | — |
How to read this: a high foreign or institutional share often means the stock is widely researched and more liquid; a high individual share means retail investors hold most of the company. Percentages are of voting units.
| S.No. | Shareholder | Shares | Stake % |
|---|---|---|---|
| 1 | 정재송 | 3,341,627 | 19.12% |
| 2 | ㈜제이스에이티에스 | 2,224,695 | 12.73% |
| 3 | ㈜제이스에너지솔루션 | 863,636 | 4.94% |
| 4 | 정대흠 | 170,245 | 0.97% |
| 5 | 정영흠 | 170,000 | 0.97% |
Trust banks such as Master Trust and Custody Bank appear at the top of most Japanese registers: they hold shares on behalf of many underlying funds rather than owning them outright.