# Relationship history for MSHA mine 4003639

Current hierarchy: **Arthur  Kinsey; Perry  Kinsey → Kinsey Construction Company, LLC. → Nickajack Quarry**

- 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

- **operator_operates_mine:** Kinsey Construction Company, LLC. → Nickajack Quarry; 2025-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Arthur  Kinsey et al → Nickajack Quarry; 2025-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Arthur  Kinsey et al → Kinsey Construction Company, LLC.; 2025-05-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Perry  Kinsey et al → Kinsey Construction Company, LLC.; 2025-05-11 to current/open; source msha-controller-operator-history