# Relationship history for MSHA mine 3401222

Current hierarchy: **Tim  Rector → Coweta Sand Company → Plant #2**

- 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

- **controller_controls_mine:** L R  Le Neve → Plant #2; 1950-01-01 to 1983-05-15; source msha-controller-operator-history
- **operator_operates_mine:** Coweta Sand & Materials Inc → Plant #2; 1979-01-01 to 1983-05-15; source msha-controller-operator-history
- **controller_controls_operator:** L R  Le Neve → Coweta Sand & Materials Inc; 1979-01-01 to 1983-05-15; source msha-controller-operator-history
- **controller_controls_mine:** Tim  Rector → Plant #2; 1982-11-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coweta Sand Company → Plant #2; 1983-05-16 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Tim  Rector → Coweta Sand Company; 1983-05-16 to current/open; source msha-controller-operator-history