# Relationship history for MSHA mine 1509362

Current hierarchy: **Kinchen Carlton M → Coal Producers Assn Inc → Carl Mine**

- 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

- **controller_controls_mine:** Kinchen Carlton M → Carl Mine; 1975-07-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Coal Producers Assn Inc → Carl Mine; 1975-10-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kinchen Carlton M → Coal Producers Assn Inc; 1975-10-17 to current/open; source msha-controller-operator-history