# Relationship history for MSHA mine 4105628

Current hierarchy: **John  Miller; Wade  Miller → BC Materials, LLC → Watson Pit - Hamilton**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** John W  Miller → Watson Pit - Hamilton; 2009-01-16 to 2024-10-21; source msha-controller-operator-history
- **operator_operates_mine:** BC Materials, LLC → Watson Pit - Hamilton; 2022-05-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John W  Miller → BC Materials, LLC; 2022-05-14 to 2024-10-21; source msha-controller-operator-history
- **controller_controls_mine:** John  Miller et al → Watson Pit - Hamilton; 2024-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** John  Miller et al → BC Materials, LLC; 2024-10-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wade  Miller et al → BC Materials, LLC; 2024-10-22 to current/open; source msha-controller-operator-history