# Relationship history for MSHA mine 5400430

Current hierarchy: **Juan Rivera  Rodriguez → Agregados Borinquen Inc → AGREGADOS BORINQUEN**

- 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:** Agregados Borinquen Inc → AGREGADOS BORINQUEN; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Juan Rivera  Rodriguez → AGREGADOS BORINQUEN; 1999-12-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Juan Rivera  Rodriguez → Agregados Borinquen Inc; 1999-12-01 to current/open; source msha-controller-operator-history