# Relationship history for MSHA mine 4608879

Current hierarchy: **Metinvest B V → Pocahontas Coal Company, LLC → Affinity Preparation Plant**

- 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

- **operator_operates_mine:** White Mountain Mining Company Llc → Affinity Preparation Plant; 2001-02-01 to 2009-09-23; source msha-controller-operator-history
- **controller_controls_mine:** White Mountain Mining Co., LLC → Affinity Preparation Plant; 2001-02-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** White Mountain Mining Co., LLC → White Mountain Mining Company Llc; 2001-02-01 to 2009-09-23; source msha-controller-operator-history
- **controller_controls_mine:** United  Company → Affinity Preparation Plant; 2005-11-15 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → Affinity Preparation Plant; 2009-04-30 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Pocahontas Coal Company LLC → Affinity Preparation Plant; 2009-09-24 to 2011-06-09; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Pocahontas Coal Company LLC; 2009-09-24 to 2011-06-09; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Pocahontas Coal Company LLC; 2009-09-24 to 2009-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Pocahontas Coal Company, LLC → Affinity Preparation Plant; 2011-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → Affinity Preparation Plant; 2011-06-10 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Pocahontas Coal Company, LLC; 2011-06-10 to current/open; source msha-controller-operator-history