# Relationship history for MSHA mine 0405894

Current hierarchy: **Alexander Redwood Partners, LLC → Humboldt Redwood Company, LLC → El Jay Cone**

- 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:** Alexander Redwood Partners, LLC et al → El Jay Cone; 2008-08-18 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Humboldt Redwood Company, LLC → El Jay Cone; 2015-02-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Alexander Redwood Partners, LLC et al → Humboldt Redwood Company, LLC; 2015-02-05 to current/open; source msha-controller-operator-history