# Relationship history for MSHA mine 4703892

Current hierarchy: **Robert  Kordus; Peter  Kordus → Asphalt Contractors, Inc. → Kordus Pit**

- 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:** Peter  Kordus et al → Kordus Pit; 2020-04-06 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Asphalt Contractors, Inc. → Kordus Pit; 2021-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Peter  Kordus et al → Asphalt Contractors, Inc.; 2021-04-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Kordus et al → Asphalt Contractors, Inc.; 2021-04-02 to current/open; source msha-controller-operator-history