# Relationship history for MSHA mine 0203412

Current hierarchy: **Dennis F  Dugger → Maxus Construction Materials L.L.C. → MAXUS02**

- 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:** Dennis F  Dugger → MAXUS02; 2017-08-03 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Maxus Construction Materials L.L.C. → MAXUS02; 2019-03-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dennis F  Dugger → Maxus Construction Materials L.L.C.; 2019-03-12 to current/open; source msha-controller-operator-history