PARIS - Neptune Orient Lines Ltd said on Saturday it has entered exclusive talks with France’s CMA CGM, the world’s third-largest container shipping firm, over a potential acquisition of the Singapore-based company. Neptune Orient Lines Ltd (NOL), controlled by Singapore state investment company Temasek Holdings, said in a statement it had entered the exclusive talks until Dec. 7. NOL, which has struggled in a prolonged downturn in the global shipping market, said this month it was in preliminary discussions with CMA CGM and A.P. Moller-Maersk. CMA CGM could not be immediately reached for comment.