# Relationship history for MSHA mine 3401818

Current hierarchy: **Jo Ann  Hudgens → H & H Crushing Llc → H & H CRUSHING LLC**

- 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:** H & H Crushing Llc → H & H CRUSHING LLC; 1999-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jo Ann  Hudgens  et al → H & H CRUSHING LLC; 1999-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jo Ann  Hudgens  et al → H & H Crushing Llc; 1999-01-01 to current/open; source msha-controller-operator-history