# Relationship history for MSHA mine 0600393

Current hierarchy: **CRH PLC → Tilcon Connecticut → Jewett City**

- 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:** American Industries → Jewett City; 1950-01-01 to 2025-10-03; source msha-controller-operator-history
- **controller_controls_mine:** Pat  Camputaro → Jewett City; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pat  Camputaro → American Industries; 1950-01-01 to 2025-10-03; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → Jewett City; 1996-09-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tilcon Connecticut → Jewett City; 2025-10-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → Tilcon Connecticut; 2025-10-04 to current/open; source msha-controller-operator-history