# Relationship history for MSHA mine 0103357

Current hierarchy: **Frank  Foley → Foley Materials Company → Phenix City Plant II**

- 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  Foley → Phenix City Plant II; 2005-09-28 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Foley Materials Company → Phenix City Plant II; 2007-04-25 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Frank  Foley → Foley Materials Company; 2007-04-25 to current/open; source msha-controller-operator-history