# Relationship history for MSHA mine 3000101

Current hierarchy: **CRH PLC → Callanan Industries Inc → Fosterdale Plant #73**

- 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:** Sullivan Highway Products Inc → Fosterdale Plant #73; 1950-01-01 to 1988-05-08; source msha-controller-operator-history
- **controller_controls_mine:** Standard Industries Ltd → Fosterdale Plant #73; 1950-01-01 to 1988-05-08; source msha-controller-operator-history
- **controller_controls_operator:** Standard Industries Ltd → Sullivan Highway Products Inc; 1950-01-01 to 1988-05-08; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Fosterdale Plant #73; 1985-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sullivan Lafarge → Fosterdale Plant #73; 1988-05-09 to 1994-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Lafarge S A → Fosterdale Plant #73; 1988-05-09 to 1995-01-24; source msha-controller-operator-history
- **controller_controls_operator:** Lafarge S A → Sullivan Lafarge; 1988-05-09 to 1994-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Callanan Industries Inc → Fosterdale Plant #73; 1994-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Callanan Industries Inc; 1994-07-01 to current/open; source msha-controller-operator-history