# Relationship history for MSHA mine 2302386

Current hierarchy: **Charah Solutions Inc → Charah LLC → Charah Limestone**

- 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

- **operator_operates_mine:** Charah LLC → Charah Limestone; 2008-10-31 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles E  Price → Charah Limestone; 2008-10-31 to 2018-06-13; source msha-controller-operator-history
- **controller_controls_operator:** Charles E  Price → Charah LLC; 2008-10-31 to 2018-06-13; source msha-controller-operator-history
- **controller_controls_mine:** Charah Solutions Inc → Charah Limestone; 2018-06-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charah Solutions Inc → Charah LLC; 2018-06-14 to current/open; source msha-controller-operator-history