# Relationship history for MSHA mine 1519786

Current hierarchy: **Jan M Berkowitz → JMEG Mine, LLC. → Mine No. 2 Auger**

- 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:** Jan M Berkowitz → Mine No. 2 Auger; 2014-02-26 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** JMEG Mine, LLC. → Mine No. 2 Auger; 2015-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jan M Berkowitz → JMEG Mine, LLC.; 2015-09-15 to current/open; source msha-controller-operator-history