# Relationship history for MSHA mine 5400453

Current hierarchy: **Francisco  Santiago → Francisco Santiago → Cantera Rincon**

- 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:** Cooperativa de Camioneros de Volteo  P R → Cantera Rincon; 2004-02-24 to 2009-04-20; source msha-controller-operator-history
- **controller_controls_mine:** Francisco  Santiago → Cantera Rincon; 2004-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Francisco  Santiago → Cooperativa de Camioneros de Volteo  P R; 2004-02-24 to 2009-04-20; source msha-controller-operator-history
- **operator_operates_mine:** Jose Masol → Cantera Rincon; 2009-04-21 to 2009-10-26; source msha-controller-operator-history
- **controller_controls_mine:** Jose  Masol → Cantera Rincon; 2009-04-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jose  Masol → Jose Masol; 2009-04-21 to 2009-10-26; source msha-controller-operator-history
- **operator_operates_mine:** Francisco Santiago → Cantera Rincon; 2009-10-27 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Francisco  Santiago → Cantera Rincon; 2009-10-27 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Francisco  Santiago → Francisco Santiago; 2009-10-27 to current/open; source msha-controller-operator-history