# Relationship history for MSHA mine 3610271

Current hierarchy: **James  Marzolino; Linda  Malinowski → SVP Aggregates, LLC → 5632 - Metso LT120**

- 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:** SVP Aggregates LLC → 5632 - Metso LT120; 2018-12-18 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James  Marzolino et al → 5632 - Metso LT120; 2018-12-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Marzolino et al → SVP Aggregates LLC; 2018-12-18 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Linda  Malinowski et al → SVP Aggregates LLC; 2018-12-18 to current/open; source msha-controller-operator-history