# Relationship history for MSHA mine 0202485

Current hierarchy: **Gates Eli → Gila Materials Inc → Gila Materials Incorporated**

- 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:** Gila Materials Inc → Gila Materials Incorporated; 1989-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Gates Eli → Gila Materials Incorporated; 1989-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Gates Eli → Gila Materials Inc; 1989-05-01 to current/open; source msha-controller-operator-history