China has implemented stricter regulations on the export of precursor chemicals to the United States, Mexico, and Canada, requiring special licenses for such transactions. The new rule, effective immediately, was jointly announced by the Ministry of Commerce, the Ministry of Public Security, the Ministry of Emergency Management, the General Administration of Customs, and the National Medical Products Administration. This adjustment targets 13 specific precursor chemicals, which are essential in various industries but are often misused in the illegal production of narcotics. Exporters must now provide original documentation from the importing country’s authorities or a guarantee from the importer confirming the legal use of these chemicals. These documents will be reviewed by Chinese public security and commerce departments. The move follows similar measures introduced in April last year, which added 24 substances to the export control catalog for specific countries, including Myanmar, Laos, and Afghanistan. The Office of China National Narcotics Control Commission has also issued a notice urging exporters to comply with international conventions and local laws, particularly in high-risk destinations like the US, Canada, and Mexico. Enterprises are advised to establish robust internal management systems, verify overseas buyers, and avoid illegal inducements. China’s narcotics control authorities emphasize the regulation of precursor chemicals as a critical step in curbing the production of illegal substances both domestically and internationally. Additionally, China has deepened its anti-narcotics cooperation with the US, including the establishment of a joint working group and regular intelligence exchanges.