# Relationship history for MSHA mine 2602806

Current hierarchy: **Loren E  Hunewill → H E Hunewill Construction Co Inc → CRC-450X**

- 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:** Loren E  Hunewill  et al → CRC-450X; 1978-03-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** H E Hunewill Construction Co Inc → CRC-450X; 2016-12-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Loren E  Hunewill  et al → H E Hunewill Construction Co Inc; 2016-12-05 to current/open; source msha-controller-operator-history