# Relationship history for MSHA mine 2003600

Current hierarchy: **Robert E  Miller → AM Miller Trucking, LLC → Plant #2**

- 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:** Robert E  Miller → Plant #2; 2017-08-14 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** AM Miller Trucking, LLC → Plant #2; 2020-06-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert E  Miller → AM Miller Trucking, LLC; 2020-06-17 to current/open; source msha-controller-operator-history