# Relationship history for MSHA mine 1401644

Current hierarchy: **Chad  Eakin → Eakin Enterprises Inc → Eakin Sand and Gravel**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** Eakin Enterprises Inc → Eakin Sand and Gravel; 2005-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Chad  Eakin → Eakin Sand and Gravel; 2005-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Chad  Eakin → Eakin Enterprises Inc; 2005-08-03 to current/open; source msha-controller-operator-history