PARIS, Nov 26 (Reuters) - French waste and water management group Veolia (VIE.PA) believes it will win EU antitrust approval for its tie-up with rival Suez (SEVI.PA) on Dec. 14 after the two companies offered additional asset sales to address competition concerns, two sources said. The new concessions, which were submitted to the EU this week, are limited in scope and do not undermine the logic of the merger between the two French rivals, the sources said.On top of that, the sale of some Veolia small industrial water treatment assets and mobile units to assist customers as well as Suez"s assets in the field of industrial hazardous waste treatment have also been offered to the EU, the sources said. In a statement issued on Wednesday, the European Commission said both companies had offered remedies in a bid to secure its approval, without giving details, and extended the deadline for its decision to Dec. 14. read more