# Relationship history for MSHA mine 2402823

Current hierarchy: **Robert  Cuffe → Bear Hat Ready Mix, Inc. → Vredenburg Pit**

- 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:** Robert  Cuffe → Vredenburg Pit; 2019-10-11 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Bear Hat Ready Mix, Inc. → Vredenburg Pit; 2025-09-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Cuffe → Bear Hat Ready Mix, Inc.; 2025-09-08 to current/open; source msha-controller-operator-history