NYT > World News China Tightens Controls on Fentanyl but Calls It a U.S. Problem Par :David Pierson and Keith Bradsher 25 juin 2025 à 02:17 Two chemicals used to make the powerful opioid will be more strictly regulated, but an official said it was “the United States’ responsibility to solve the issue.” © Meridith Kohut for The New York TimesUsing fentanyl at a California encampment last year. The Trump administration says China hasn’t done enough to keep the drug out of the United States.