# Relationship history for MSHA mine 1002182

Current hierarchy: **Kary S  Yates; Cindy W  Yates → KD Excavation LLC → Screening plant**

- 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:** Cindy W  Yates et al → Screening plant; 1998-05-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** KD Excavation LLC → Screening plant; 2009-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cindy W  Yates et al → KD Excavation LLC; 2009-06-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kary S  Yates et al → KD Excavation LLC; 2009-06-22 to current/open; source msha-controller-operator-history