# Relationship history for MSHA mine 4105725

Current hierarchy: **Wes  Hughes; Sterling  Miller → West Point Silica, LLC → West Point 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Sterling  Miller et al → West Point Plant #2; 2023-05-10 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** West Point Silica, LLC → West Point Plant #2; 2024-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sterling  Miller et al → West Point Silica, LLC; 2024-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wes  Hughes et al → West Point Silica, LLC; 2024-01-26 to current/open; source msha-controller-operator-history