# Relationship history for MSHA mine 5400462

Current hierarchy: **Fernando  Carrero; Raymar  Lucena → Southwest Global Services Group Corp → Southwest Global Services Group Corp**

- 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:** C F Rock Quarry → Southwest Global Services Group Corp; 2005-06-07 to 2010-05-17; source msha-controller-operator-history
- **controller_controls_mine:** Conrado  Forestier Jr → Southwest Global Services Group Corp; 2005-06-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Conrado  Forestier Jr → C F Rock Quarry; 2005-06-07 to 2010-05-17; source msha-controller-operator-history
- **operator_operates_mine:** Southwest Global Services Group Corp → Southwest Global Services Group Corp; 2010-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Fernando  Carrero et al → Southwest Global Services Group Corp; 2010-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fernando  Carrero et al → Southwest Global Services Group Corp; 2010-05-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymar  Lucena et al → Southwest Global Services Group Corp; 2010-05-18 to current/open; source msha-controller-operator-history