China and ASEAN countries have witnessed“smooth progress”over consultation on a Code of Conduct(COC)in the South China Sea during a recent joint meeting,Chinese foreign ministry spokesperson Lu Kang said on March 1.China and ASEAN countries held the 27th joint working group meeting on the Implementation of the Declaration on the Conduct of Parties in the South China Sea from February 27 to 28 in Naypyitaw,capital of Myanmar,the spokesperson told a routine press briefing.