# Relationship history for MSHA mine 4801824

Current hierarchy: **CCI  (Clyde Companies Inc) → Suncore Construction and Materials Inc. → Rawlins Limestone Quarry**

- 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

- **controller_controls_mine:** CCI  (Clyde Companies Inc) → Rawlins Limestone Quarry; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Suncore Construction and Materials Inc. → Rawlins Limestone Quarry; 2019-04-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** CCI  (Clyde Companies Inc) → Suncore Construction and Materials Inc.; 2019-04-26 to current/open; source msha-controller-operator-history