# Relationship history for MSHA mine 4703745

Current hierarchy: **Clearlake Capital Partners; Charles  Young → Smart Sand, Inc → Smart Sand - Hixton**

- 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:** Clearlake Capital Partners et al → Smart Sand - Hixton; 2012-07-09 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Smart Sand, Inc → Smart Sand - Hixton; 2015-02-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Clearlake Capital Partners et al → Smart Sand, Inc; 2015-02-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Young et al → Smart Sand, Inc; 2015-02-19 to current/open; source msha-controller-operator-history