# Relationship history for MSHA mine 4609229

Current hierarchy: **Metinvest B V → Pocahontas Coal Company LLC → Beckley No. 1 Mine**

- 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:** United  Company → Beckley No. 1 Mine; 2005-11-15 to 2009-04-29; source msha-controller-operator-history
- **operator_operates_mine:** Pocahontas Coal Company LLC → Beckley No. 1 Mine; 2007-09-14 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** United  Company → Pocahontas Coal Company LLC; 2007-09-14 to 2009-04-29; source msha-controller-operator-history
- **controller_controls_mine:** Metinvest B V → Beckley No. 1 Mine; 2009-04-30 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Metinvest B V → Pocahontas Coal Company LLC; 2009-04-30 to current/open; source msha-controller-operator-history