# Relationship history for MSHA mine 2902562

Current hierarchy: **Strategic Minerals PLC → Southern Minerals Group → Chino Mine**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Southern Minerals Group → Chino Mine; 2024-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Strategic Minerals PLC → Chino Mine; 2024-10-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Strategic Minerals PLC → Southern Minerals Group; 2024-10-10 to current/open; source msha-controller-operator-history