# Relationship history for MSHA mine 2901285

Current hierarchy: **Ralph  Nevarez → Neverez Brothers Trucking Inc → NEVAREZ BROS TRUCKING INC**

- 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

- **operator_operates_mine:** Neverez Brothers Trucking Inc → NEVAREZ BROS TRUCKING INC; 1989-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ralph  Nevarez → NEVAREZ BROS TRUCKING INC; 1989-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ralph  Nevarez → Neverez Brothers Trucking Inc; 1989-03-01 to current/open; source msha-controller-operator-history