ASEAN-China SOM on implementation of DOC held in Quang Ninh The 20th ASEAN-China Senior Officials' Meeting on the Implementation of the Declaration on the Conduct of Parties (DOC) in the East Sea/South China Sea (SOM-DOC) was held in the northern province of Quang Ninh on May 17 after nearly two years of hiatus caused by the COVID-19 pandemic. 11:18 | 18/05/2023