# Relationship history for MSHA mine 5400291

Current hierarchy: **Jorge L  Rosado Soto → Rosado Contractors → Cantera El Zorro**

- 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:** N R S Universal Contractors Of Pr Inc → Cantera El Zorro; 1986-03-01 to 2003-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Sigfredo  Velez → Cantera El Zorro; 1986-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sigfredo  Velez → N R S Universal Contractors Of Pr Inc; 1986-03-01 to 2003-08-04; source msha-controller-operator-history
- **controller_controls_mine:** Angel L  Rosado → Cantera El Zorro; 1996-04-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Rosado Contractor → Cantera El Zorro; 2003-08-05 to 2006-08-01; source msha-controller-operator-history
- **controller_controls_operator:** Angel L  Rosado → Rosado Contractor; 2003-08-05 to 2006-08-01; source msha-controller-operator-history
- **operator_operates_mine:** Rosado Contractors → Cantera El Zorro; 2006-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jorge L  Rosado Soto → Cantera El Zorro; 2006-08-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jorge L  Rosado Soto → Rosado Contractors; 2006-08-02 to current/open; source msha-controller-operator-history