# Relationship history for MSHA mine 4503702

Current hierarchy: **Louay  Owaidat → Magnus Pacific Corporation → Holden Mine Remediation Quarry**

- 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:** Rio Tinto AuM Company → Holden Mine Remediation Quarry; 2012-04-25 to 2013-03-20; source msha-controller-operator-history
- **controller_controls_mine:** Rio Tinto Group → Holden Mine Remediation Quarry; 2012-04-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rio Tinto Group → Rio Tinto AuM Company; 2012-04-25 to 2013-03-20; source msha-controller-operator-history
- **operator_operates_mine:** Magnus Pacific Corporation → Holden Mine Remediation Quarry; 2013-03-21 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Louay  Owaidat → Holden Mine Remediation Quarry; 2013-03-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Louay  Owaidat → Magnus Pacific Corporation; 2013-03-21 to current/open; source msha-controller-operator-history