# Relationship history for MSHA mine 2003295

Current hierarchy: **Angelo J  Positano → Duval Developments USA Limited → Cedarapids**

- 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

- **operator_operates_mine:** Duval Developments USA Limited → Cedarapids; 2004-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Angelo J  Positano → Cedarapids; 2004-06-08 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Angelo J  Positano → Duval Developments USA Limited; 2004-06-08 to current/open; source msha-controller-operator-history