# Relationship history for MSHA mine 2602069

Current hierarchy: **Bruce  Hansen → General Moly Inc → Liberty Moly Project**

- 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:** Cyprus Tonopah Mining Corp → Liberty Moly Project; 1988-07-01 to 2007-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Cyprus Amax Minerals Company → Liberty Moly Project; 1988-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cyprus Amax Minerals Company → Cyprus Tonopah Mining Corp; 1988-07-01 to 2007-05-31; source msha-controller-operator-history
- **controller_controls_mine:** Bruce  Hansen → Liberty Moly Project; 2005-11-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** General Moly Inc → Liberty Moly Project; 2007-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bruce  Hansen → General Moly Inc; 2007-06-01 to current/open; source msha-controller-operator-history