# Relationship history for MSHA mine 4704002

Current hierarchy: **M10 Inc → MICHELS ROAD AND STONE → PLANT 27**

- 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:** M10 Inc → PLANT 27; 2021-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** MICHELS ROAD AND STONE → PLANT 27; 2026-07-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** M10 Inc → MICHELS ROAD AND STONE; 2026-07-13 to current/open; source msha-controller-operator-history