The United States Treasury Department imposed sanctions on what they designated the Zhao Wei Transnational Criminal Organization (Zhao Wei TCO) in 2018 for its alleged involvement in laundering money and assisting in the storage and distribution of heroin, methamphetamine, and other narcotics for illicit networks, including the United Wa State Army which operates in Myanmar.
He established ties with the National Democratic Alliance Army whose leader, Sai Leun financed the operations of the casino industry in Mong La.
[8][9] In early October 2020, a US$50 million dollar investment to build a port in the Laotian town of Ban Mom, directly north of the Golden Triangle Special Economic Zone, was made by Osiano Trading Sole Co., a partner or front company of Zhao Wei and his organization.
[11][12] The Ban Mom port is on a remote stretch of the Mekong which has been confirmed as a smuggling route for trafficking drugs and precursor chemicals into and out of the Golden Triangle.
[13][14] Zhao Wei is married to Chinese Australian Su Guiqin (born 1960),[15] who runs the Kings Romans casino alongside her husband.