# Relationship history for MSHA mine 0901147

Current hierarchy: **Randy  Rice; Cesar  Cruz → Creative Stone and Steelworks Inc → Creative Stone and Steelworks**

- 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:** Massoud  Besharat → Creative Stone and Steelworks; 2001-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Blue Sky Quarries, Inc. → Creative Stone and Steelworks; 2002-05-30 to 2026-08-23; source msha-controller-operator-history
- **controller_controls_operator:** Massoud  Besharat → Blue Sky Quarries, Inc.; 2002-05-30 to 2026-08-23; source msha-controller-operator-history
- **operator_operates_mine:** Creative Stone and Steelworks Inc → Creative Stone and Steelworks; 2026-08-24 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Cesar  Cruz et al → Creative Stone and Steelworks; 2026-08-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Cesar  Cruz et al → Creative Stone and Steelworks Inc; 2026-08-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Randy  Rice et al → Creative Stone and Steelworks Inc; 2026-08-24 to current/open; source msha-controller-operator-history