# Relationship history for MSHA mine 3503904

Current hierarchy: **The Kuskokwim Corporation → Suulutaaq Inc → Henry's Quary**

- 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

- **controller_controls_mine:** The Kuskokwim Corporation → Henry's Quary; 2020-03-02 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Suulutaaq Inc → Henry's Quary; 2020-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** The Kuskokwim Corporation → Suulutaaq Inc; 2020-04-01 to current/open; source msha-controller-operator-history