# Relationship history for MSHA mine 1519814

Current hierarchy: **Ferroglobe PLC → Alden Resources LLC → Maple Creek Springtown**

- 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:** James  Cox et al → Maple Creek Springtown; 2007-03-30 to 2009-07-16; source msha-controller-operator-history
- **controller_controls_mine:** NCGPAsset Holdings II LP et al → Maple Creek Springtown; 2009-07-17 to 2011-07-31; source msha-controller-operator-history
- **controller_controls_mine:** Ferroglobe PLC → Maple Creek Springtown; 2011-08-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Alden Resources LLC → Maple Creek Springtown; 2017-06-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** James  Cox et al → Alden Resources LLC; 2017-06-21 to 2009-07-16; source msha-controller-operator-history
- **controller_controls_operator:** NCGPAsset Holdings II LP et al → Alden Resources LLC; 2017-06-21 to 2011-07-31; source msha-controller-operator-history
- **controller_controls_operator:** Ferroglobe PLC → Alden Resources LLC; 2017-06-21 to current/open; source msha-controller-operator-history