# Relationship history for MSHA mine 5001633

Current hierarchy: **Colas S A → Secon → AggPro Wash Plant**

- 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:** Gordon  Crawley → AggPro Wash Plant; 1995-03-01 to 2000-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Exclusive Landscaping & Paving Inc → AggPro Wash Plant; 1995-05-01 to 2004-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Daniel  Himebauch → AggPro Wash Plant; 1995-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel  Himebauch → Exclusive Landscaping & Paving Inc; 1995-05-01 to 2004-10-31; source msha-controller-operator-history
- **controller_controls_mine:** Colas S A → AggPro Wash Plant; 2000-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Secon → AggPro Wash Plant; 2004-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Colas S A → Secon; 2004-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gordon  Crawley → Secon; 2004-11-01 to 2000-08-31; source msha-controller-operator-history