# Relationship history for MSHA mine 4502964

Current hierarchy: **Geomex Development Inc → Geomex Mine Services Inc → Red Mountain**

- 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:** E & B Explorations Inc → Red Mountain; 1982-06-01 to 1984-09-03; source msha-controller-operator-history
- **controller_controls_mine:** E & B Explorations Inc → Red Mountain; 1982-06-01 to 1984-09-03; source msha-controller-operator-history
- **controller_controls_operator:** E & B Explorations Inc → E & B Explorations Inc; 1982-06-01 to 1984-09-03; source msha-controller-operator-history
- **controller_controls_mine:** Geomex Development Inc → Red Mountain; 1983-09-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Geomex Mine Services Inc → Red Mountain; 1984-09-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Geomex Development Inc → Geomex Mine Services Inc; 1984-09-04 to current/open; source msha-controller-operator-history