# Relationship history for MSHA mine 3608269

Current hierarchy: **Fotos Stephen → Export Waste Management Inc → Hammond Bank**

- 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:** Fotos Stephen → Hammond Bank; 1991-05-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Export Waste Management Inc → Hammond Bank; 1991-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Fotos Stephen → Export Waste Management Inc; 1991-07-01 to current/open; source msha-controller-operator-history