# Relationship history for MSHA mine 0203384

Current hierarchy: **Dennis F  Dugger → MAXUS CONSTRUCTION MATERIALS LLC → MAXUS1**

- 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:** MAXUS CONSTRUCTION MATERIALS LLC → MAXUS1; 2017-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dennis F  Dugger → MAXUS1; 2017-08-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dennis F  Dugger → MAXUS CONSTRUCTION MATERIALS LLC; 2017-08-03 to current/open; source msha-controller-operator-history