# China-US transnational drug trafficking crackdown > Live situation record from CLSTR: https://clstr.news/situations/china-us-transnational-drug-trafficking-crackdown > Updated: 2026-09-09T10:23:00.000Z. Sources: 5. Developments: 2. Chinese and American law enforcement agencies have collaborated to dismantle a transnational criminal operation involving synthetic drug precursors. Following leads provided by U.S. authorities, the Chinese Ministry of Public Security conducted operations in Hebei and other regions in mid-August, resulting in the arrest of 21 suspects and the seizure of various non-regulated chemical precursors. In a related legal development, two Chinese nationals, Lisa Xing and Zhanwen Song, were indicted in the Eastern District of Texas for drug trafficking and money laundering. Prosecutors allege the pair supplied synthetic opioids, cannabinoids, and stimulants from China to domestic distributors in the United States. These substances were reportedly dissolved into liquid and saturated onto sheets of paper, which were then mailed to inmates in federal and state prisons across the country. ## Timeline ### 2026-09-09: China and US dismantle transnational drug precursor ring China and the US successfully dismantled a transnational synthetic cannabinoid precursor ring, while two US citizens were arrested in Japan for smuggling 150 million yen worth of cannabis. 3 sources. https://clstr.news/cluster/china-and-us-dismantle-transnational-drug-precursor-ring ### 2026-09-09: Chinese nationals indicted for smuggling synthetic drugs into U.S. prisons Two Chinese nationals and two U.S. citizens face charges for a scheme that shipped synthetic drugs from China to the U.S., where they were soaked into paper and mailed to prison inmates nationwide. 2 sources. https://clstr.news/cluster/chinese-nationals-indicted-for-smuggling-synthetic-drugs-into-us-prisons --- Cite as: China-US transnational drug trafficking crackdown. CLSTR, https://clstr.news/situations/china-us-transnational-drug-trafficking-crackdown