# Relationship history for MSHA mine 4105905

Current hierarchy: **Geovanny  Auz → AuzTerra Aggregates, LLC → Hempstead Plant**

- 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

- **operator_operates_mine:** AuzTerra Aggregates, LLC → Hempstead Plant; 2026-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Geovanny  Auz → Hempstead Plant; 2026-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Geovanny  Auz → AuzTerra Aggregates, LLC; 2026-04-10 to current/open; source msha-controller-operator-history