# Relationship history for MSHA mine 4405900

Current hierarchy: **Mills Charles F Iii → Atlantic Coal Corp → #2**

- 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:** Mills Charles F Iii → #2; 1982-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Atlantic Coal Corp → #2; 1982-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mills Charles F Iii → Atlantic Coal Corp; 1982-06-01 to current/open; source msha-controller-operator-history