BEIJING -- China said Tuesday that the six-party talks are still an efficient platform to address the Korean Peninsula nuclear issueLaunched in 2003, ope体育app官方the six-party talks were suspended in December 2008Lu said the joint statement, signed on Sept 19, 2005, is the most important progress in addressing the Korean Peninsula nuclear issue through negotiations, and is of milestone significanceChina also proposed a dual-track approach to denuclearization on the peninsula on the one hand and establishing a peace mechanism on the otherChina has put forward the "double suspeope体育app官方nsion" proposal, which requires the DPRK to suspend its missile and nuclear activities in exchange for the suspension of large-scale US-ROK military drillsThe DPRK walked out of the talks in April 2009 in protest against UN sanctions