Most fentanyl going to US are made in Mexico, not China. The chemical to make fentanyl if purchased separately may not be illegal. Blaming China is politics not going to solve US drug problems! Death penalty for drug user could be the best deterrent👈 大多數銷往美國的芬太尼是墨西哥製造的，而不是中國製造的。 如果單獨購買用於製造芬太尼的化學品可能並不違法。 指責中國是政治解決不了美國的毒品問題！ 對吸毒者判處死刑可能是最好的威懾👈

Hong Kong SAR updated their drug law to control the fentanyl precursors 4-anilino-N-phenethyl-4- piperidine (ANPP) and N-phenethyl-4-piperidone (NPP) as well as the synthetic opioid U-47700.