EX-21 8 fe-12312017xex21.htm EXHIBIT 21
EXHIBIT 21

FIRSTENERGY CORP.
LIST OF SUBSIDIARIES OF THE REGISTRANT
AT DECEMBER 31, 2017
FirstEnergy Nuclear Operating Company - Incorporated in Ohio
FirstEnergy Service Company - Incorporated in Ohio
FirstEnergy Solutions Corp. - Incorporated in Ohio
FirstEnergy Transmission, LLC - Organized in Delaware
FirstEnergy Ventures Corp. - Incorporated in Ohio
Jersey Central Power & Light Company - Incorporated in New Jersey
Metropolitan Edison Company - Incorporated in Pennsylvania
Monongahela Power Company - Incorporated in Ohio
Ohio Edison Company - Incorporated in Ohio
Pennsylvania Electric Company - Incorporated in Pennsylvania
The Cleveland Electric Illuminating Company - Incorporated in Ohio
The Potomac Edison Company - Incorporated in Maryland
The Toledo Edison Company - Incorporated in Ohio
West Penn Power Company - Incorporated in Pennsylvania

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