# Relationship history for MSHA mine 1700930

Current hierarchy: **S C Holdings Inc → SARGENT CORPORATION → JCI 2650**

- 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:** S C Holdings Inc → JCI 2650; 1997-05-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kevin L  Vining → JCI 2650; 2004-04-20 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** E.L. Vining & Son Inc. → JCI 2650; 2014-05-08 to 2025-11-23; source msha-controller-operator-history
- **controller_controls_operator:** Kevin L  Vining → E.L. Vining & Son Inc.; 2014-05-08 to 2025-11-23; source msha-controller-operator-history
- **operator_operates_mine:** SARGENT CORPORATION → JCI 2650; 2025-11-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** S C Holdings Inc → SARGENT CORPORATION; 2025-11-24 to current/open; source msha-controller-operator-history