# Relationship history for MSHA mine 4003260

Current hierarchy: ** → Jean Coal Company Tennessee, LLC → 010 Salem 1500B**

- 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

Historical edge projection is not bundled for this mine yet.