# Relationship history for MSHA mine 1202528

Current hierarchy: **Matthew  Kelley → Midwest Paving → US Aggregates Inc**

- 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:** Midwest Paving → US Aggregates Inc; 2025-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Matthew  Kelley → US Aggregates Inc; 2025-12-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Matthew  Kelley → Midwest Paving; 2025-12-03 to current/open; source msha-controller-operator-history