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Story summary
- Terrell Jermaine Williams, a Miami-area man, pleaded guilty to smuggling N-Isopropyl Butylone from China into the United States.
- He used U.S. Postal Service for years to import the drug.
- Customs intercepted a package at home.
- In collaboration with Chinese authorities, U.S. agents seized 700 kilograms of the drug in September 2025, not yet regulated in China.
- After the seizure, Chinese authorities restricted its production due to lack of legitimate use.
