The Southern African Development Community was inaugurated Friday by SADC member country residents in Vietnam, including Angola, Mozambique and South Africa.
The China-Vietnam Economic and Trade Forum took place in the International Conference Center of Liuzhou Hotel on Nov 18.
The 2012 China-Vietnam People Friendship Festival opened in Liuzhou in the Guangxi Zhuang autonomous region on Nov 17.
China and Vietnam pledged to further promote their partnership on Saturday.
Typhoon Son-Tinh has brought strong wind and downpours to Guangxi since Sunday, sinking six boats and causing another 70 to go missing on a China-Vietnam border river.
General Secretary of the Communist Party of Vietnam (CPV) Central Committee Nguyen Phu Trong met with visiting Chinese State Councilor Meng Jianzhu in Hanoi on Wednesday.
Bilateral trade and investment cooperation between China and Vietnam are expected to strengthen in the future as the two countries have similarities in culture and governance structure.