Century, Big Rivers and Kenergy File Definitive Energy Agreements With the Kentucky Public Service Commission

CHICAGO, IL — (Marketwired) — 06/12/13 — Century Aluminum of Kentucky, a wholly owned subsidiary of Century Aluminum Company (NASDAQ: CENX), Kenergy Corp. and Big Rivers Electric Corp. today announced that they have finalized and filed with the Kentucky Public Service Commission definitive agreements between the parties based on the tentative agreement reached in April. These agreements and the filing are a first step in finalizing the tentative agreement. The agreement is subject to approva