# Relationship history for MSHA mine 3003792

Current hierarchy: **Nektarios J Fitzpatrick → Aden 209 LLC → 209 SAND & GRAVEL**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Robert  Scheinman → 209 SAND & GRAVEL; 2010-03-08 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** 209 Materials LLC → 209 SAND & GRAVEL; 2010-11-17 to 2026-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Robert  Scheinman → 209 Materials LLC; 2010-11-17 to 2026-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Aden 209 LLC → 209 SAND & GRAVEL; 2026-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Nektarios J Fitzpatrick → 209 SAND & GRAVEL; 2026-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Nektarios J Fitzpatrick → Aden 209 LLC; 2026-09-01 to current/open; source msha-controller-operator-history