# Relationship history for MSHA mine 0405936

Current hierarchy: **Terry  Suzuki → Materials Solutions, LLC → Materials Solutions**

- 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:** Materials Solutions, LLC → Materials Solutions; 2019-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Terry  Suzuki → Materials Solutions; 2019-05-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Terry  Suzuki → Materials Solutions, LLC; 2019-05-15 to current/open; source msha-controller-operator-history