# Relationship history for MSHA mine 4406879

Current hierarchy: **Iluka Resources Ltd → Iluka Resources Inc. → Old Hickory Mine & Concentrator**

- 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:** Iluka Resources Ltd → Old Hickory Mine & Concentrator; 1980-05-27 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Iluka Resources Inc. → Old Hickory Mine & Concentrator; 1997-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Iluka Resources Ltd → Iluka Resources Inc.; 1997-06-01 to current/open; source msha-controller-operator-history