# Relationship history for MSHA mine 2700532

Current hierarchy: **Charles  Benevento → Benevento Aggregates LLC → Portable Chieftain 1700**

- 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:** Charles  Benevento → Portable Chieftain 1700; 2019-11-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Benevento Aggregates LLC → Portable Chieftain 1700; 2022-10-05 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Charles  Benevento → Benevento Aggregates LLC; 2022-10-05 to current/open; source msha-controller-operator-history