# Relationship history for MSHA mine 1002320

Current hierarchy: **Frank J Motley → Pre-Mix Inc N.W. → Paffile**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Frank J Motley → Paffile; 2003-06-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pre-Mix Inc N.W. → Paffile; 2020-04-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank J Motley → Pre-Mix Inc N.W.; 2020-04-06 to current/open; source msha-controller-operator-history