# Relationship history for MSHA mine 4104914

Current hierarchy: **Jose Jesus Espinoza → Espinoza Stone Inc → Espinoza-Lueders 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:** Jose Jesus Espinoza → Espinoza-Lueders Quarry; 1997-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Espinoza Stone Inc → Espinoza-Lueders Quarry; 2011-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jose Jesus Espinoza → Espinoza Stone Inc; 2011-11-02 to current/open; source msha-controller-operator-history