# Relationship history for MSHA mine 0801024

Current hierarchy: **OHL Group (Spain) → Community Asphalt Corp → SAWGRASS QUARRY**

- 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:** Community Asphalt Corp → SAWGRASS QUARRY; 1984-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Marion  Mosely et al → SAWGRASS QUARRY; 1984-11-01 to 2012-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Marion  Mosely et al → Community Asphalt Corp; 1984-11-01 to 2012-03-28; source msha-controller-operator-history
- **controller_controls_mine:** OHL Group (Spain) → SAWGRASS QUARRY; 2012-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** OHL Group (Spain) → Community Asphalt Corp; 2012-03-29 to current/open; source msha-controller-operator-history