# Relationship history for MSHA mine 3901282

Current hierarchy: **Coeur Mining, Inc. → Wharf Resources (USA) Inc → Coeur Wharf**

- 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

- **operator_operates_mine:** Wharf Resources (USA) Inc → Coeur Wharf; 1982-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Goldcorp Inc → Coeur Wharf; 1982-04-01 to 2015-02-23; source msha-controller-operator-history
- **controller_controls_operator:** Goldcorp Inc → Wharf Resources (USA) Inc; 1982-04-01 to 2015-02-23; source msha-controller-operator-history
- **controller_controls_mine:** Coeur Mining, Inc. → Coeur Wharf; 2015-02-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Coeur Mining, Inc. → Wharf Resources (USA) Inc; 2015-02-24 to current/open; source msha-controller-operator-history