The US says China is a main source of materials for fentanyl that later ends up in America. The deal, which both leaders settled at the Asian-Pacific Economic Committee summit in San Francisco, would see Beijing assist Washington by regulating fentanyl precursors in China. The Drug Enforcement Administration has warned in recent years that China is a primary source for key ingredients in fentanyl. Advertisement"Focusing on China as the source of the problem has been because it's such an easy country to criticize," Ross said. For the Biden administration, the fentanyl deal has been an issue repeatedly pushed by US officials, Liu said.

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Persons: —, Joe Biden, Xi Jinping, Zha Daojiong, Biden, Xi, Liu Zongyuan, Maurice R, Greenberg, Liu, Robert Ross, Ross, Eric Richardson, that's Organizations: Service, Pacific, Drug, Administration, Business, Peking University, pharma, of Foreign Relations, DEA, Boston College, UC Berkeley, INHR, United Nations, US, Bloomberg, Reuters, Forensic Public Security Institute Locations: China, America, San Francisco, Beijing, Washington, India, it's, Mexico, United, Europe, Xinjiang