# Relationship history for MSHA mine 5000338

Current hierarchy: **Raymond A  Hanson → R A Hanson Company Inc → Platinum Mine**

- 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:** R A Hanson Company Inc → Platinum Mine; 1980-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Raymond A  Hanson → Platinum Mine; 1980-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Raymond A  Hanson → R A Hanson Company Inc; 1980-06-01 to current/open; source msha-controller-operator-history