CEFC China Energy Company Limited has teamed up with Penta Investment Group Limited to try and buy Time Warner Inc. 's( NYSE:TWX) Central European Media Enterprises Ltd. (NasdaqGS:CETV), three sources familiar with the matter said. One of the sources said privately-held CEFC is leading the consortium and is expected to provide the bulk of the financing for any deal to acquire CME, which could be worth about €500 million ($590 million). Several bidders could be interested, including international players, another source said familiar with the matter said. Penta declined to comment. It has already invested in print and online media in the Czech Republic and Slovakia.