# Relationship history for MSHA mine 3000013

Current hierarchy: **CRH PLC → Callanan Industries Inc → SOUTH BETHLEHEM**

- 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:** Callanan Industries Inc → SOUTH BETHLEHEM; 1950-01-01 to 1982-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Penn-Dixie Industries Inc → SOUTH BETHLEHEM; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Penn-Dixie Industries Inc → Callanan Industries Inc; 1950-01-01 to 1982-07-31; source msha-controller-operator-history
- **operator_operates_mine:** Callanan Industries Inc → SOUTH BETHLEHEM; 1982-08-01 to 1985-03-31; source msha-controller-operator-history
- **controller_controls_mine:** M & S Resources Inc → SOUTH BETHLEHEM; 1982-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** M & S Resources Inc → Callanan Industries Inc; 1982-08-01 to 1985-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Callanan Industries Inc → SOUTH BETHLEHEM; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → SOUTH BETHLEHEM; 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