# Relationship history for MSHA mine 0202232

Current hierarchy: **Threse  Sanders → Cashway Concrete & Materials Corp → MESA 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: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Threse  Sanders → MESA PLANT; 1982-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Cashway Concrete & Materials Corp → MESA PLANT; 1984-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Threse  Sanders → Cashway Concrete & Materials Corp; 1984-12-01 to current/open; source msha-controller-operator-history