# Relationship history for MSHA mine 3004067

Current hierarchy: **Paul M  Kuzmich; Brian P  Kuzmich → KUZMICH TRUCKING & EXCAVATING LLC → GREENWICH MATERIALS**

- 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:** Paul M  Kuzmich et al → GREENWICH MATERIALS; 2009-10-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Kuzmich Trucking & Excavating LLC → GREENWICH MATERIALS; 2021-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul M  Kuzmich et al → Kuzmich Trucking & Excavating LLC; 2021-02-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Brian P  Kuzmich et al → Kuzmich Trucking & Excavating LLC; 2021-02-10 to current/open; source msha-controller-operator-history