# Relationship history for MSHA mine 2902442

Current hierarchy: **GCC SAB de CV → GCC Sun City Materials LLC → Mesquite Quarry**

- 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:** Sanchez Holdings LLC → Mesquite Quarry; 2005-06-29 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Sanchez Holdings LLC → Mesquite Quarry; 2014-11-26 to 2025-04-23; source msha-controller-operator-history
- **controller_controls_operator:** Sanchez Holdings LLC → Sanchez Holdings LLC; 2014-11-26 to 2025-04-23; source msha-controller-operator-history
- **controller_controls_mine:** GCC SAB de CV → Mesquite Quarry; 2016-11-19 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** GCC Sun City Materials LLC → Mesquite Quarry; 2025-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** GCC SAB de CV → GCC Sun City Materials LLC; 2025-04-24 to current/open; source msha-controller-operator-history