The U.S. Financial Services Committee's Subcommittee on Oversight and Investigations held a hearing on the growing partnership between Chinese money laundering networks and drug cartels, framing it as a threat to the U.S. financial system. Testimony focused on how these networks move fentanyl-related proceeds and other illicit funds through the United States and across borders while adapting their methods to avoid law enforcement detection. Witnesses and members pointed to the use of cash-intensive businesses, real estate and money services businesses, and described a cycle in which U.S. drug proceeds are converted into pesos and then into Chinese currency. Testimony also linked these networks to a wider set of illicit activity, including fraud, human trafficking, marijuana grow operations and tax evasion. Proposed responses included a whole-of-government strategy, dedicated regional task forces, stronger beneficial ownership transparency, regular threat reporting, tighter scrutiny of high-risk trade and financial corridors, and expanded sanctions, enforcement and data capabilities.