# Relationship history for MSHA mine 4703646

Current hierarchy: **Clearlake Capital Partners; Charles  Young → CRS Proppants LLC → Dovre Processing Plant**

- 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

- **operator_operates_mine:** Great Northern Sand → Dovre Processing Plant; 2012-04-25 to 2020-11-02; source msha-controller-operator-history
- **controller_controls_mine:** CRS Proppants → Dovre Processing Plant; 2012-04-25 to 2014-10-16; source msha-controller-operator-history
- **controller_controls_operator:** CRS Proppants → Great Northern Sand; 2012-04-25 to 2014-10-16; source msha-controller-operator-history
- **controller_controls_mine:** Eagle Materials Inc → Dovre Processing Plant; 2014-10-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eagle Materials Inc → Great Northern Sand; 2014-10-17 to 2020-11-02; source msha-controller-operator-history
- **operator_operates_mine:** CRS Proppants LLC → Dovre Processing Plant; 2020-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Charles  Young et al → Dovre Processing Plant; 2020-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Young et al → CRS Proppants LLC; 2020-11-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clearlake Capital Partners et al → CRS Proppants LLC; 2020-11-03 to current/open; source msha-controller-operator-history