# Relationship history for MSHA mine 4503646

Current hierarchy: **Mark A  Segale → Segale Properties LLC → Frenchman Hills Quarry Portable Plant #2707**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Segale Properties LLC → Frenchman Hills Quarry Portable Plant #2; 2008-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark A  Segale et al → Frenchman Hills Quarry Portable Plant #2; 2008-06-19 to 2026-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Mark A  Segale et al → Segale Properties LLC; 2008-06-19 to 2026-03-08; source msha-controller-operator-history
- **controller_controls_operator:** Mario A  Segale et al → Segale Properties LLC; 2008-06-19 to 2026-03-08; source msha-controller-operator-history
- **controller_controls_mine:** Mark A  Segale → Frenchman Hills Quarry Portable Plant #2; 2026-03-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark A  Segale → Segale Properties LLC; 2026-03-09 to current/open; source msha-controller-operator-history