# Relationship history for MSHA mine 0600658

Current hierarchy: **Strategic Commercial Realty Inc → Rawson Materials → RAWSON MATERIALS - PLANT 5**

- 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:** HOPKINS MATERIALS → RAWSON MATERIALS - PLANT 5; 1997-08-01 to 2005-12-31; source msha-controller-operator-history
- **controller_controls_mine:** Hopkins Donald → RAWSON MATERIALS - PLANT 5; 1997-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hopkins Donald → HOPKINS MATERIALS; 1997-08-01 to 2005-12-31; source msha-controller-operator-history
- **controller_controls_mine:** O & G Industries Inc → RAWSON MATERIALS - PLANT 5; 2001-04-12 to 2025-04-16; source msha-controller-operator-history
- **operator_operates_mine:** Rawson Materials → RAWSON MATERIALS - PLANT 5; 2006-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** O & G Industries Inc → Rawson Materials; 2006-01-01 to 2025-04-16; source msha-controller-operator-history
- **controller_controls_mine:** Strategic Commercial Realty Inc → RAWSON MATERIALS - PLANT 5; 2025-04-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Strategic Commercial Realty Inc → Rawson Materials; 2025-04-17 to current/open; source msha-controller-operator-history