# Relationship history for MSHA mine 4100996

Current hierarchy: **Carmeuse Holding SA; Lafarge SA → San Antonio Lime Inc → LIME PLANT**

- 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:** Redland Stone Products Company → LIME PLANT; 1950-01-01 to 1997-06-18; source msha-controller-operator-history
- **controller_controls_mine:** Redland Plc → LIME PLANT; 1950-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Redland Plc → Redland Stone Products Company; 1950-01-01 to 1997-06-18; source msha-controller-operator-history
- **operator_operates_mine:** San Antonio Lime Inc → LIME PLANT; 1997-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Carmeuse Holding SA → LIME PLANT; 1997-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carmeuse Holding SA → San Antonio Lime Inc; 1997-06-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Lafarge SA → San Antonio Lime Inc; 1997-06-19 to current/open; source msha-controller-operator-history