# Relationship history for MSHA mine 5400451

Current hierarchy: **Albert  Vanniekerk → Cantera del Este LLC → Cantera del Este LLC**

- 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:** Stars Quarry, Inc. → Cantera del Este LLC; 2003-04-11 to 2015-08-08; source msha-controller-operator-history
- **controller_controls_mine:** Carlos  Estrella → Cantera del Este LLC; 2003-04-11 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carlos  Estrella → Stars Quarry, Inc.; 2003-04-11 to 2015-08-08; source msha-controller-operator-history
- **operator_operates_mine:** Cantera del Este LLC → Cantera del Este LLC; 2015-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Albert  Vanniekerk → Cantera del Este LLC; 2015-08-09 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Albert  Vanniekerk → Cantera del Este LLC; 2015-08-09 to current/open; source msha-controller-operator-history