# Relationship history for MSHA mine 0404484

Current hierarchy: **Spivey Rupert B → El Ganador Inc → Good Hope 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

- **operator_operates_mine:** El Ganador Inc → Good Hope Mine; 1980-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Spivey Rupert B → Good Hope Mine; 1980-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Spivey Rupert B → El Ganador Inc; 1980-11-01 to current/open; source msha-controller-operator-history