# Relationship history for MSHA mine 4300571

Current hierarchy: **Jeffery  Forbes → Case Street Redi-Mix Inc. → Case Street Mine**

- 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:** Case Street Redi-Mix Inc → Case Street Mine; 2001-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jeffery  Forbes → Case Street Mine; 2001-11-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffery  Forbes → Case Street Redi-Mix Inc; 2001-11-14 to current/open; source msha-controller-operator-history