# Relationship history for MSHA mine 4407179

Current hierarchy: **Elizabeth K  Justus-Dickenson → Tech Leasing & Rebuild, LLC → #2**

- 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:** Kenneth L  Stacy → #2; 2001-08-01 to 2006-02-09; source msha-controller-operator-history
- **controller_controls_mine:** Jeffrey K  Justus et al → #2; 2004-12-21 to 2007-04-23; source msha-controller-operator-history
- **controller_controls_mine:** United  Company → #2; 2006-02-10 to 2009-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Surface Minerals Company → #2; 2006-06-15 to 2006-10-01; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Surface Minerals Company; 2006-06-15 to 2006-10-01; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth L  Stacy → Surface Minerals Company; 2006-06-15 to 2006-02-09; source msha-controller-operator-history
- **operator_operates_mine:** Tech Leasing & Rebuild, LLC → #2; 2006-10-02 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Jeffrey K  Justus et al → Tech Leasing & Rebuild, LLC; 2006-10-02 to 2007-04-23; source msha-controller-operator-history
- **controller_controls_mine:** Dennis  Daniels → #2; 2007-04-24 to 2007-12-02; source msha-controller-operator-history
- **controller_controls_operator:** Dennis  Daniels → Tech Leasing & Rebuild, LLC; 2007-04-24 to 2007-12-02; source msha-controller-operator-history
- **controller_controls_mine:** Willard H.  Cook → #2; 2007-12-03 to 2010-06-30; source msha-controller-operator-history
- **controller_controls_operator:** Willard H.  Cook → Tech Leasing & Rebuild, LLC; 2007-12-03 to 2010-06-30; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → #2; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Surface Minerals Company; 2009-04-30 to 2006-10-01; source msha-controller-operator-history
- **controller_controls_mine:** Elizabeth K  Justus-Dickenson → #2; 2010-07-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Elizabeth K  Justus-Dickenson → Tech Leasing & Rebuild, LLC; 2010-07-01 to current/open; source msha-controller-operator-history