# Relationship history for MSHA mine 3901525

Current hierarchy: **James  Mettler → Mettler Fertilizer → Rokusek**

- 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:** Mettler Fertilizer → Rokusek; 2008-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James  Mettler → Rokusek; 2008-06-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Mettler → Mettler Fertilizer; 2008-06-18 to current/open; source msha-controller-operator-history