# Relationship history for MSHA mine 4300695

Current hierarchy: **Clark S  Bogie → Chief Crushing & Excavation, Inc → Jaw 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** Chief Crushing & Excavation, Inc → Jaw Plant; 2008-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Clark S  Bogie → Jaw Plant; 2008-07-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clark S  Bogie → Chief Crushing & Excavation, Inc; 2008-07-09 to current/open; source msha-controller-operator-history