UNCLASSIFIED Fentanyl Flow to the United StatesExplore further
2020-3-6 · powder and fentanyl precursor chemicals. DETAILS CHINA Currently, China remains the primary source of fentanyl and fentanyl-related substances trafficked through international mail and express consignment operations environment, as well as the main source for all fentanyl-related substances trafficked into the United States.
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