# Relationship history for MSHA mine 4202184

Current hierarchy: **Michael S  Dunn → Custom Crushing & Recycling Lc → BINGGELI**

- 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:** Michael S  Dunn → BINGGELI; 1996-12-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Custom Crushing & Recycling Lc → BINGGELI; 1997-10-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Michael S  Dunn → Custom Crushing & Recycling Lc; 1997-10-01 to current/open; source msha-controller-operator-history