LANGKAWI, Malaysia (Reuters) - The regional bloc ASEAN and China should make headway on a protracted code of conduct for the South China Sea by tackling thorny "milestone issues", including its scope and if it can be legally binding, the Philippines' top diplomat said on Saturday.

Southeast Asian foreign ministers hold a closed-doors retreat in Malaysia on Sunday, as the country hosts its first meeting as chair of the regional bloc ASEAN amid an intensifying civil war in Myanmar and confrontations in the South China Sea.

Southeast Asian foreign ministers convene in Malaysia to address pressing regional issues including Myanmar's civil unrest and tensions in the South China Sea. As ASEAN chair, Malaysia pushes for progress amid skepticism about resolving conflicts swiftly.