# Relationship history for MSHA mine 4701203

Current hierarchy: **Cretex Companies Inc → Cretex Materials Inc → Main Wash Plant**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** J W Peters  Inc → Main Wash Plant; 1950-01-01 to 2010-01-03; source msha-controller-operator-history
- **controller_controls_mine:** Cretex Companies Inc → Main Wash Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cretex Companies Inc → J W Peters  Inc; 1950-01-01 to 2010-01-03; source msha-controller-operator-history
- **operator_operates_mine:** Cretex Materials Inc → Main Wash Plant; 2010-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cretex Companies Inc → Main Wash Plant; 2010-01-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cretex Companies Inc → Cretex Materials Inc; 2010-01-04 to current/open; source msha-controller-operator-history