# Relationship history for MSHA mine 4104427

Current hierarchy: **Jack  Waters Sr → C S B Materials Inc → CSB Materials Inc**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-18T09:31:49.615908+00:00

## Valid-time edges

- **operator_operates_mine:** C S B Materials Inc → CSB Materials Inc; 2003-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Jack  Waters Sr   et al → CSB Materials Inc; 2003-06-04 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jack  Waters Sr   et al → C S B Materials Inc; 2003-06-04 to current/open; source msha-controller-operator-history