# Relationship history for MSHA mine 1001818

Current hierarchy: **CRH PLC → Idaho Materials and Construction → TV Plant #001295**

- 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

- **controller_controls_mine:** Pat  Mc Entee  et al → TV Plant #001295; 1986-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Central Paving Co Inc → TV Plant #001295; 1988-02-01 to 2024-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Pat  Mc Entee  et al → Central Paving Co Inc; 1988-02-01 to 2024-10-17; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Mc Entee  et al → Central Paving Co Inc; 1988-02-01 to 2024-10-17; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → TV Plant #001295; 2000-03-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Idaho Materials and Construction → TV Plant #001295; 2024-10-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Idaho Materials and Construction; 2024-10-18 to current/open; source msha-controller-operator-history