# Relationship history for MSHA mine 5400298

Current hierarchy: **Jose  Carro → Construcciones Jose Carro S.E. → Cantera Hip�dromo**

- 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:** Cantera Hipodromo Inc → Cantera Hip�dromo; 1987-08-01 to 2019-07-17; source msha-controller-operator-history
- **controller_controls_mine:** Carlos Ortiz  Brunet → Cantera Hip�dromo; 1987-08-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carlos Ortiz  Brunet → Cantera Hipodromo Inc; 1987-08-01 to 2019-07-17; source msha-controller-operator-history
- **controller_controls_mine:** Jose  Carro → Cantera Hip�dromo; 1994-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Construcciones Jose Carro S.E. → Cantera Hip�dromo; 2019-07-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jose  Carro → Construcciones Jose Carro S.E.; 2019-07-18 to current/open; source msha-controller-operator-history