Business segment information - Holding Percentage of Subsidiaries (Details) |
Jun. 30, 2026 |
|---|---|
| Chemicals | |
| Business segment information | |
| Controlling interest in subsidiary | 81.00% |
| Component products | |
| Business segment information | |
| Controlling interest in subsidiary | 87.00% |
| Real estate management and development | Basic Management Inc | |
| Business segment information | |
| Controlling interest in subsidiary | 63.00% |
| Real estate management and development | LandWell | Aggregate General And Limited Interests | |
| Business segment information | |
| Controlling interest in subsidiary | 77.00% |