# Relationship history for MSHA mine 2902254

Current hierarchy: **Felipe  Sanchez; Joshua  Sanchez → Sanchez Sand and Gravel → J. Herman Tabet Veguita 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: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** JHT Veguita Pit → J. Herman Tabet Veguita Pit; 2003-09-24 to 2025-04-02; source msha-controller-operator-history
- **controller_controls_mine:** Herman  Tabet → J. Herman Tabet Veguita Pit; 2003-09-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Herman  Tabet → JHT Veguita Pit; 2003-09-24 to 2025-04-02; source msha-controller-operator-history
- **operator_operates_mine:** Sanchez Sand and Gravel → J. Herman Tabet Veguita Pit; 2025-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Felipe  Sanchez et al → J. Herman Tabet Veguita Pit; 2025-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Felipe  Sanchez et al → Sanchez Sand and Gravel; 2025-04-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Joshua  Sanchez et al → Sanchez Sand and Gravel; 2025-04-03 to current/open; source msha-controller-operator-history