# Relationship history for MSHA mine 4608894

Current hierarchy: **SunCoke Energy Incorporated → Vansant Coal Corporation → Vansant 4A**

- 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:** Sunoco, Inc. → Vansant 4A; 1994-09-01 to 2012-01-16; source msha-controller-operator-history
- **controller_controls_mine:** Coy  Taylor et al → Vansant 4A; 1995-06-15 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** C J & L Mining Inc → Vansant 4A; 2001-04-01 to 2006-02-06; source msha-controller-operator-history
- **controller_controls_operator:** Coy  Taylor et al → C J & L Mining Inc; 2001-04-01 to 2006-02-06; source msha-controller-operator-history
- **controller_controls_operator:** James  Taylor et al → C J & L Mining Inc; 2001-04-01 to 2006-02-06; source msha-controller-operator-history
- **operator_operates_mine:** Vansant Coal Corporation → Vansant 4A; 2006-02-07 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Sunoco, Inc. → Vansant Coal Corporation; 2006-02-07 to 2012-01-16; source msha-controller-operator-history
- **controller_controls_mine:** SunCoke Energy Incorporated → Vansant 4A; 2012-01-17 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** SunCoke Energy Incorporated → Vansant Coal Corporation; 2012-01-17 to current/open; source msha-controller-operator-history