# Relationship history for MSHA mine 4103869

Current hierarchy: **Denise  Schneider → Dds Aggregates Inc → CLEVELAND PLANT #4**

- 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:** Dds Aggregates Inc → CLEVELAND PLANT #4; 1995-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Denise  Schneider → CLEVELAND PLANT #4; 1995-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Denise  Schneider → Dds Aggregates Inc; 1995-04-01 to current/open; source msha-controller-operator-history