# Relationship history for MSHA mine 2601628

Current hierarchy: **Winokur Robert → Agau Ventures Ltd → Falcon**

- 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:** Agau Ventures Ltd → Falcon; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Winokur Robert Et Al → Falcon; 1980-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Winokur Robert Et Al → Agau Ventures Ltd; 1980-03-01 to current/open; source msha-controller-operator-history