# Relationship history for MSHA mine 5400494

Current hierarchy: **Paul James  Rice → Arecibo Industrial Park, Inc. → Arecibo Industrial Park Inc.**

- 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

- **operator_operates_mine:** Arecibo Industrial Park, Inc. → Arecibo Industrial Park Inc.; 2015-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Paul James  Rice → Arecibo Industrial Park Inc.; 2015-04-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul James  Rice → Arecibo Industrial Park, Inc.; 2015-04-10 to current/open; source msha-controller-operator-history