# Relationship history for MSHA mine 4503047

Current hierarchy: **CRH PLC → M A Segale Inc → PLANT 2704**

- 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:** Mark A  Segale et al → PLANT 2704; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** M A Segale Inc → PLANT 2704; 1985-04-01 to 1998-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Mark A  Segale et al → M A Segale Inc; 1985-04-01 to 1998-04-30; source msha-controller-operator-history
- **controller_controls_operator:** Mario A  Segale et al → M A Segale Inc; 1985-04-01 to 1998-04-30; source msha-controller-operator-history
- **operator_operates_mine:** M A Segale Inc → PLANT 2704; 1998-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** CRH PLC → PLANT 2704; 1998-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CRH PLC → M A Segale Inc; 1998-05-01 to current/open; source msha-controller-operator-history