# Relationship history for MSHA mine 2104038

Current hierarchy: **Kyle  Ludewig → Construction Haulers Inc → Roiger 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

- **operator_operates_mine:** Construction Haulers Inc → Roiger Pit; 2022-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kyle  Ludewig → Roiger Pit; 2022-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kyle  Ludewig → Construction Haulers Inc; 2022-08-19 to current/open; source msha-controller-operator-history