# Relationship history for MSHA mine 5500013

Current hierarchy: **Zachary  Tausch; Vernon  Tausch → Far South Mining LLC → Caribbean Blue Stone**

- 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:** V I Quarry Inc → Caribbean Blue Stone; 2000-06-01 to 2004-01-25; source msha-controller-operator-history
- **controller_controls_mine:** Carlton L  Stevens → Caribbean Blue Stone; 2000-06-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Carlton L  Stevens → V I Quarry Inc; 2000-06-01 to 2004-01-25; source msha-controller-operator-history
- **operator_operates_mine:** Aggregate Inc → Caribbean Blue Stone; 2004-01-26 to 2019-11-21; source msha-controller-operator-history
- **controller_controls_mine:** Ann E  Abramson → Caribbean Blue Stone; 2004-01-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ann E  Abramson → Aggregate Inc; 2004-01-26 to 2019-11-21; source msha-controller-operator-history
- **controller_controls_mine:** Zachary  Tausch  et al → Caribbean Blue Stone; 2011-10-24 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Far South Mining LLC → Caribbean Blue Stone; 2019-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Zachary  Tausch  et al → Far South Mining LLC; 2019-11-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Vernon  Tausch  et al → Far South Mining LLC; 2019-11-22 to current/open; source msha-controller-operator-history