# Relationship history for MSHA mine 3609699

Current hierarchy: **Mepco Intermediate Holdings, LLC → Shannopin Materials, LLC → Shannopin Dock Site**

- 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:** Shannopin Materials, LLC → Shannopin Dock Site; 2009-01-29 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** James L  Laurita Jr  et al → Shannopin Dock Site; 2009-04-08 to 2014-02-02; source msha-controller-operator-history
- **controller_controls_operator:** James L  Laurita Jr  et al → Shannopin Materials, LLC; 2009-04-08 to 2014-02-02; source msha-controller-operator-history
- **controller_controls_operator:** GenPower Holdings LP  et al → Shannopin Materials, LLC; 2009-04-08 to 2014-02-02; source msha-controller-operator-history
- **controller_controls_mine:** Mepco Intermediate Holdings, LLC → Shannopin Dock Site; 2014-02-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mepco Intermediate Holdings, LLC → Shannopin Materials, LLC; 2014-02-03 to current/open; source msha-controller-operator-history