# Relationship history for MSHA mine 3610043

Current hierarchy: **Eric  Snyder; Ken J  Snyder → Snyder Coal & Iron LLC → Sunshine Bank #1**

- 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

- **operator_operates_mine:** Snyder Coal & Iron LLC → Sunshine Bank #1; 2013-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ken J  Snyder et al → Sunshine Bank #1; 2013-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ken J  Snyder et al → Snyder Coal & Iron LLC; 2013-01-03 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Eric  Snyder et al → Snyder Coal & Iron LLC; 2013-01-03 to current/open; source msha-controller-operator-history