# Weiliang Zheng admitted to participating in international money laundering.

*biotech · news · 2026-04-30 · Chicago Sun-Times*

## Key points

- Weiliang Zheng admitted guilt in laundering $3 million in drug proceeds from Chicago to Mexico via China.
- Undercover agents arrested Zheng and Luo after receiving $95,000 and Chinese bank account details.
- Chinese nationals began replacing Mexican money launderers for cartel cash transfers due to lower fees and faster transactions.
- The scheme used 'mirror swaps' with Chinese currency transfers to evade the U.S. banking system and law enforcement.
- Convicted Chinese money launderers Haiping Pan and Xianbing Gan transferred over $62 million to Mexican cartels.

**Countries:** United States, Mexico, China

[Read the full story on Chicago Sun-Times](https://chicago.suntimes.com/the-watchdogs/2026/04/30/money-laundering-chinese-chicago-mexican-cartel-crime)

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