# Relationship history for MSHA mine 3000025

Current hierarchy: **CRH PLC → CALLANAN INDUSTRIES INC → PATTERSONVILLE PLANT #61**

- 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:** Crushed Rock Products Inc → PATTERSONVILLE PLANT #61; 1950-01-01 to 1984-01-31; source msha-controller-operator-history
- **controller_controls_mine:** J Lynn  Kellam → PATTERSONVILLE PLANT #61; 1950-01-01 to 1984-01-31; source msha-controller-operator-history
- **controller_controls_operator:** J Lynn  Kellam → Crushed Rock Products Inc; 1950-01-01 to 1984-01-31; source msha-controller-operator-history
- **operator_operates_mine:** Asphalt Stone Products → PATTERSONVILLE PLANT #61; 1984-02-01 to 1985-03-31; source msha-controller-operator-history
- **controller_controls_mine:** M & S Resources Inc → PATTERSONVILLE PLANT #61; 1984-02-01 to 1985-03-31; source msha-controller-operator-history
- **controller_controls_operator:** M & S Resources Inc → Asphalt Stone Products; 1984-02-01 to 1985-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Callanan Industries Inc → PATTERSONVILLE PLANT #61; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → PATTERSONVILLE PLANT #61; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Callanan Industries Inc; 1985-04-01 to current/open; source msha-controller-operator-history