US pushes global coalition to pressure China on curbing fentanyl trade amid tensions

The U.S. wants to form an international coalition of 84 countries to combat the flow of chemicals from China used to make fentanyl.
China insists the U.S. must improve relations for anti-drug cooperation but opposes U.S. unilateral actions.
U.S. officials say China has not cooperated on stopping exports of fentanyl ingredients despite repeated requests.
China was angered by U.S. criminal charges against Chinese companies and cut off high-level contacts.
China participates in international anti-drug efforts but relations with the U.S. remain strained.