# Relationship history for MSHA mine 2700573

Current hierarchy: **Ernest J  Thibeault III → Thibeault corp of NE → Thibeault corp of NE**

- 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

- **controller_controls_mine:** Ernest J  Thibeault III → Thibeault corp of NE; 1997-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Thibeault corp of NE → Thibeault corp of NE; 2026-08-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ernest J  Thibeault III → Thibeault corp of NE; 2026-08-20 to current/open; source msha-controller-operator-history