China becomes first country to regulate all synthetic cannabinoid substances Zhao Yusha Published: May 11, 2021 11:23 AM Guangzhou Customs seized 200 grams of cannabis in a case involving concealed drugs smuggled through an express channel. Photo: Courtesy of Guangzhou Customs China will regulate all cannabinoid substances, the country's National Narcotics Control Commission (NNCC) announced on Tuesday. This makes China the first country in the world to do so, showing the country's continued efforts to crack down on new psychoactive substances, after it regulated all fentanyl-related substances in 2019. Deng Ming, deputy head of the NNCC, said at a Tuesday press conference that China will add 18 substances, including synthetic cannabinoid substances and ketamine, to the narcotic and psychotropic drugs regulation list.