# Relationship history for MSHA mine 0405319

Current hierarchy: **Soledad Holdings Inc → Golden Queen Mining Company → Soledad Mountain 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Golden Queen Mining Company Ltd → Soledad Mountain Project; 1996-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Golden Queen Mining Company Inc → Soledad Mountain Project; 1997-07-01 to 2014-12-14; source msha-controller-operator-history
- **controller_controls_operator:** Golden Queen Mining Company Ltd → Golden Queen Mining Company Inc; 1997-07-01 to 2014-12-14; source msha-controller-operator-history
- **operator_operates_mine:** Golden Queen Mining Company → Soledad Mountain Project; 2014-12-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Golden Queen Mining Company Ltd et al → Soledad Mountain Project; 2014-12-15 to 2023-11-23; source msha-controller-operator-history
- **controller_controls_operator:** Golden Queen Mining Company Ltd et al → Golden Queen Mining Company; 2014-12-15 to 2023-11-23; source msha-controller-operator-history
- **controller_controls_operator:** Gauss LLC et al → Golden Queen Mining Company; 2014-12-15 to 2023-11-23; source msha-controller-operator-history
- **controller_controls_mine:** Soledad Holdings Inc → Soledad Mountain Project; 2023-11-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Soledad Holdings Inc → Golden Queen Mining Company; 2023-11-24 to current/open; source msha-controller-operator-history