# Relationship history for MSHA mine 2402065

Current hierarchy: **American Gem Corp → American Gem Corp → GEM 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

- **controller_controls_mine:** American Gem Corp → GEM MOUNTAIN; 1994-06-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** American Gem Corp → GEM MOUNTAIN; 1994-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** American Gem Corp → American Gem Corp; 1994-10-01 to current/open; source msha-controller-operator-history