# Relationship history for MSHA mine 2700563

Current hierarchy: **Keith P  Snook → Snook's Mobile Screening LLC → KPI Astec GT125**

- 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:** Keith P  Snook → KPI Astec GT125; 2023-07-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Snook's Mobile Screening LLC → KPI Astec GT125; 2025-04-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Keith P  Snook → Snook's Mobile Screening LLC; 2025-04-15 to current/open; source msha-controller-operator-history