# Relationship history for MSHA mine 2900294

Current hierarchy: **Royalstar Resources Ltd → San Pedro Mining Corp → San Pedro 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

- **controller_controls_mine:** Goldfield Corp → San Pedro Mine; 1950-01-01 to 2002-12-03; source msha-controller-operator-history
- **operator_operates_mine:** San Pedro Mining Corp → San Pedro Mine; 1981-04-01 to 1985-05-14; source msha-controller-operator-history
- **controller_controls_mine:** Goldfield Corp → San Pedro Mine; 1981-04-01 to 1985-05-14; source msha-controller-operator-history
- **controller_controls_operator:** Goldfield Corp → San Pedro Mining Corp; 1981-04-01 to 1985-05-14; source msha-controller-operator-history
- **operator_operates_mine:** Silver Bar Mining Company Inc → San Pedro Mine; 1985-05-15 to 1986-05-19; source msha-controller-operator-history
- **controller_controls_mine:** Young Ira M → San Pedro Mine; 1985-05-15 to 1986-05-19; source msha-controller-operator-history
- **controller_controls_operator:** Young Ira M → Silver Bar Mining Company Inc; 1985-05-15 to 1986-05-19; source msha-controller-operator-history
- **operator_operates_mine:** Julian Mining Inc → San Pedro Mine; 1986-05-20 to 1989-09-20; source msha-controller-operator-history
- **controller_controls_mine:** Ross A D → San Pedro Mine; 1986-05-20 to 1989-09-20; source msha-controller-operator-history
- **controller_controls_operator:** Ross A D → Julian Mining Inc; 1986-05-20 to 1989-09-20; source msha-controller-operator-history
- **operator_operates_mine:** St Cloud Mining Company → San Pedro Mine; 1989-09-21 to 1994-03-28; source msha-controller-operator-history
- **controller_controls_operator:** Goldfield Corp → St Cloud Mining Company; 1989-09-21 to 1994-03-28; source msha-controller-operator-history
- **controller_controls_mine:** Royalstar Resources Ltd → San Pedro Mine; 1994-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** San Pedro Mining Corp → San Pedro Mine; 1994-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Royalstar Resources Ltd → San Pedro Mining Corp; 1994-03-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Imagin Minerals Incorporated → San Pedro Mine; 2002-12-04 to 2024-12-12; source msha-controller-operator-history
- **controller_controls_operator:** Imagin Minerals Incorporated → St Cloud Mining Company; 2002-12-04 to 1994-03-28; source msha-controller-operator-history
- **controller_controls_mine:** Equalizer Inc → San Pedro Mine; 2024-12-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Equalizer Inc → St Cloud Mining Company; 2024-12-13 to 1994-03-28; source msha-controller-operator-history