# Relationship history for MSHA mine 3401319

Current hierarchy: **Kimbro James R → K W J Mining Company Inc → Green Country-Nebo No 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **operator_operates_mine:** K W J Mining Company Inc → Green Country-Nebo No 1; 1981-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kimbro James R → Green Country-Nebo No 1; 1981-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kimbro James R → K W J Mining Company Inc; 1981-04-01 to current/open; source msha-controller-operator-history