# Relationship history for MSHA mine 2401906

Current hierarchy: **Holker Robert L → H & H Gold Inc → Bins 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:** H & H Gold Inc → Bins Mine; 1989-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Holker Robert L → Bins Mine; 1989-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Holker Robert L → H & H Gold Inc; 1989-10-01 to current/open; source msha-controller-operator-history