# Relationship history for MSHA mine 4103749

Current hierarchy: **Wayne B  Bean → B & E Materials Company → B & E Materials Company**

- 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:** B & E Materials Company → B & E Materials Company; 1992-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Wayne B  Bean → B & E Materials Company; 1992-11-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Wayne B  Bean → B & E Materials Company; 1992-11-01 to current/open; source msha-controller-operator-history