# Relationship history for MSHA mine 4105480

Current hierarchy: **Kevin  Collier; Dan  McBride → Resource Materials LLC → Resource Materials**

- 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:** Resource Materials LLC → Resource Materials; 2020-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Dan  McBride et al → Resource Materials; 2020-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Dan  McBride et al → Resource Materials LLC; 2020-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kevin  Collier et al → Resource Materials LLC; 2020-01-01 to current/open; source msha-controller-operator-history