# Relationship history for MSHA mine 5400491

Current hierarchy: **Marcelo  Cruz → GRAVERO LAS 14, INC → GRAVERO LAS 14**

- 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:** GRAVERO LAS 14, INC → GRAVERO LAS 14; 2013-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Marcelo  Cruz → GRAVERO LAS 14; 2013-04-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Marcelo  Cruz → GRAVERO LAS 14, INC; 2013-04-24 to current/open; source msha-controller-operator-history