China tightens fentanyl precursor export controls ahead of Xi-Trump meeting

China added two N-phenethyl piperidine esters to its export licensing list for the US, Canada, and Mexico, effective immediately, one day before Xi Jinping's visit to the US. This is a continuation of China's incremental precursor controls, but the timing signals a goodwill gesture ahead of bilateral talks. The move is likely aimed at addressing US concerns on fentanyl trafficking, though its impact on actual supply remains uncertain.