# Relationship history for MSHA mine 5400069

Current hierarchy: **Pablo R  Morales → Inversiones Del Toa Incorporated → LOS COCOS MINE**

- 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:** Rexach Sand & Gravel Corp → LOS COCOS MINE; 1950-01-01 to 1983-04-04; source msha-controller-operator-history
- **controller_controls_mine:** Rexco Industries Inc → LOS COCOS MINE; 1950-01-01 to 1983-04-04; source msha-controller-operator-history
- **controller_controls_operator:** Rexco Industries Inc → Rexach Sand & Gravel Corp; 1950-01-01 to 1983-04-04; source msha-controller-operator-history
- **operator_operates_mine:** Inversiones Del Toa Incorporated → LOS COCOS MINE; 1983-04-05 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Pablo R  Morales → LOS COCOS MINE; 1983-04-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Pablo R  Morales → Inversiones Del Toa Incorporated; 1983-04-05 to current/open; source msha-controller-operator-history