# Relationship history for MSHA mine 5001634

Current hierarchy: **Colas S A → University Redi-Mix → Mobile Plant #2**

- 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 → Mobile Plant #2; 1995-03-01 to 2000-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Exclusive Landscaping & Paving Inc → Mobile Plant #2; 1995-05-01 to 2007-04-12; source msha-controller-operator-history
- **controller_controls_mine:** Daniel  Himebauch → Mobile Plant #2; 1995-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel  Himebauch → Exclusive Landscaping & Paving Inc; 1995-05-01 to 2007-04-12; source msha-controller-operator-history
- **controller_controls_mine:** Colas S A → Mobile Plant #2; 2000-09-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** University Redi-Mix → Mobile Plant #2; 2007-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Colas S A → University Redi-Mix; 2007-04-13 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gordon  Crawley → University Redi-Mix; 2007-04-13 to 2000-08-31; source msha-controller-operator-history