# Relationship history for MSHA mine 5400235

Current hierarchy: **Hector  Rodriguez → Transporte Rodriguez Asfalto, Inc. → Gravero Rodriguez, Manati**

- 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:** Guaraguao Sand & Gravel Inc → Gravero Rodriguez, Manati; 1979-01-01 to 1980-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Rosado Frank & Erik A → Gravero Rodriguez, Manati; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Rosado Frank & Erik A → Guaraguao Sand & Gravel Inc; 1979-01-01 to 1980-06-30; source msha-controller-operator-history
- **operator_operates_mine:** Betteroads Asphalt Corp → Gravero Rodriguez, Manati; 1980-07-01 to 2016-11-01; source msha-controller-operator-history
- **controller_controls_mine:** Arturo  Diaz Jr → Gravero Rodriguez, Manati; 1980-07-01 to 2012-12-11; source msha-controller-operator-history
- **controller_controls_operator:** Arturo  Diaz Jr → Betteroads Asphalt Corp; 1980-07-01 to 2012-12-11; source msha-controller-operator-history
- **controller_controls_mine:** Hector  Rodriguez → Gravero Rodriguez, Manati; 2008-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jorge L  Diaz → Gravero Rodriguez, Manati; 2012-12-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jorge L  Diaz → Betteroads Asphalt Corp; 2012-12-12 to 2016-11-01; source msha-controller-operator-history
- **operator_operates_mine:** Transporte Rodriguez Asfalto, Inc. → Gravero Rodriguez, Manati; 2016-11-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Hector  Rodriguez → Transporte Rodriguez Asfalto, Inc.; 2016-11-02 to current/open; source msha-controller-operator-history