# Relationship history for MSHA mine 2902383

Current hierarchy: **Anabel  Corona → Quattro Materials Center, LLC. → Mesquite 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

- **controller_controls_mine:** Jose A.  Gamboa → Mesquite Pit; 2007-09-05 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** J A Gamboa Trucking & Materials Inc. → Mesquite Pit; 2008-08-26 to 2020-12-27; source msha-controller-operator-history
- **controller_controls_operator:** Jose A.  Gamboa → J A Gamboa Trucking & Materials Inc.; 2008-08-26 to 2020-12-27; source msha-controller-operator-history
- **operator_operates_mine:** Quattro Materials Center, LLC. → Mesquite Pit; 2020-12-28 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Anabel  Corona → Mesquite Pit; 2020-12-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Anabel  Corona → Quattro Materials Center, LLC.; 2020-12-28 to current/open; source msha-controller-operator-history