China Expands Export Controls on Drug Precursor Chemicals Ahead of Trump–Xi Talks
China is a major source of precursor chemicals used to produce illicit fentanyl.

TL;DR
- China added two new chemicals to its export control list for drug precursors.
- Exporters now need licenses to ship these substances to the United States, Mexico, and Canada.
- The announcement comes before a meeting between President Donald Trump and Chinese leader Xi Jinping.
- Xi Jinping is scheduled to visit the White House on September 24th.