# Relationship history for MSHA mine 4105854

Current hierarchy: **Laurie  Tondre; Charles  Tondre → Cuatro T Construction → 341 Pit**

- 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:** Cuatro T Construction → 341 Pit; 2026-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Laurie  Tondre et al → 341 Pit; 2026-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Laurie  Tondre et al → Cuatro T Construction; 2026-03-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Tondre et al → Cuatro T Construction; 2026-03-05 to current/open; source msha-controller-operator-history