# Relationship history for MSHA mine 2103837

Current hierarchy: **Mark W  Hagen → Hagen Construction and Trucking LLC → 12x5 Terex Screen 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

- **operator_operates_mine:** Hagen Construction & Trucking LLC → 12x5 Terex Screen Plant; 2014-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mark W  Hagen → 12x5 Terex Screen Plant; 2014-06-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mark W  Hagen → Hagen Construction & Trucking LLC; 2014-06-06 to current/open; source msha-controller-operator-history