# Relationship history for MSHA mine 4105698

Current hierarchy: **Wes  Hughes; Sterling  Miller → West Point Silica LLC → West Point Plant #1**

- 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:** West Point Silica LLC → West Point Plant #1; 2023-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Sterling  Miller et al → West Point Plant #1; 2023-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sterling  Miller et al → West Point Silica LLC; 2023-05-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wes  Hughes et al → West Point Silica LLC; 2023-05-10 to current/open; source msha-controller-operator-history