# Relationship history for MSHA mine 4603978

Current hierarchy: **Majesty Coal Company → Majesty Coal Company → Majesty Coal Co**

- 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:** Tait Mining Company → Majesty Coal Co; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Tait Mining Company → Majesty Coal Co; 1973-01-01 to 1973-11-15; source msha-controller-operator-history
- **controller_controls_operator:** Tait Mining Company → Tait Mining Company; 1973-01-01 to 1973-11-15; source msha-controller-operator-history
- **operator_operates_mine:** Majesty Coal Company → Majesty Coal Co; 1973-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Majesty Coal Company → Majesty Coal Co; 1973-11-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Majesty Coal Company → Majesty Coal Company; 1973-11-16 to current/open; source msha-controller-operator-history