# Relationship history for MSHA mine 2401552

Current hierarchy: **Collins M C → Beaman International Inc → Beaman Placer**

- 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:** Golden Rule Corp → Beaman Placer; 1980-06-01 to 1981-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Golden Rule Corp → Beaman Placer; 1980-06-01 to 1981-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Golden Rule Corp → Golden Rule Corp; 1980-06-01 to 1981-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Wytana Inc & Missouri Valley Construction Co → Beaman Placer; 1981-07-01 to 1983-08-22; source msha-controller-operator-history
- **operator_operates_mine:** S & G Mining Company → Beaman Placer; 1981-09-01 to 1983-08-22; source msha-controller-operator-history
- **controller_controls_operator:** Wytana Inc & Missouri Valley Construction Co → S & G Mining Company; 1981-09-01 to 1983-08-22; source msha-controller-operator-history
- **operator_operates_mine:** Beaman International Inc → Beaman Placer; 1983-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Collins M C → Beaman Placer; 1983-08-23 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Collins M C → Beaman International Inc; 1983-08-23 to current/open; source msha-controller-operator-history