# Relationship history for MSHA mine 0901071

Current hierarchy: **Sued-Chemie AG → Albion Kaolin Company → KAOLIN 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

- **controller_controls_mine:** Sued-Chemie AG → KAOLIN MINE; 1985-01-23 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Albion Kaolin Company → KAOLIN MINE; 1993-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sued-Chemie AG → Albion Kaolin Company; 1993-01-01 to current/open; source msha-controller-operator-history