# Relationship history for MSHA mine 0202059

Current hierarchy: **Boaz Mining Inc → Boaz Mining Inc → Boaz 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Boaz Mining Inc → Boaz Mine; 1981-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Boaz Mining Inc → Boaz Mine; 1981-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Boaz Mining Inc → Boaz Mining Inc; 1981-06-17 to current/open; source msha-controller-operator-history