# Relationship history for MSHA mine 5400177

Current hierarchy: **Manuel O  Roig → Arenero Roig → ARENERO ROIG**

- 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:** Yabucoa Aggregates → ARENERO ROIG; 1950-01-01 to 1987-06-22; source msha-controller-operator-history
- **controller_controls_mine:** Antonio  Roig Ferre → ARENERO ROIG; 1950-01-01 to 1987-06-22; source msha-controller-operator-history
- **controller_controls_operator:** Antonio  Roig Ferre → Yabucoa Aggregates; 1950-01-01 to 1987-06-22; source msha-controller-operator-history
- **operator_operates_mine:** Arenas De Yabucoa Inc → ARENERO ROIG; 1987-06-23 to 1994-08-28; source msha-controller-operator-history
- **controller_controls_mine:** Ramon Ponce  Fantauzzi → ARENERO ROIG; 1987-06-23 to 1994-08-28; source msha-controller-operator-history
- **controller_controls_operator:** Ramon Ponce  Fantauzzi → Arenas De Yabucoa Inc; 1987-06-23 to 1994-08-28; source msha-controller-operator-history
- **operator_operates_mine:** Arenero Roig → ARENERO ROIG; 1994-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Manuel O  Roig → ARENERO ROIG; 1994-08-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Manuel O  Roig → Arenero Roig; 1994-08-29 to current/open; source msha-controller-operator-history