Possible reasons why Mao Chenyue would not be under border control: Regarding criminal case investigation: A spokesperson for the Chinese Ministry of Foreign Affairs stated that Mao Chenyue has been lawfully restricted from leaving the country due to her involvement in a criminal case being handled by the Chinese side, and she has an obligation to cooperate with law enforcement agencies in their investigation. The details of the case have not been made public, but it is emphasized that everyone in China must abide by the law. • Related to cross-border financial business disputes: As an international factoring expert, she is responsible for cross-border trade financing, accounts receivable pledge, and supply chain financing for Wells Fargo, which may involve debt transfer, fund flow, or factoring contract disputes. These businesses are considered sensitive areas of 'grey funding channels' or trigger regulatory scrutiny to ensure she fulfills her burden of proof. • Suspected of money laundering or asset transfer: There are rumors that she may provide overseas asset transfer services for corrupt officials, such as purchasing luxury homes or engaging in illegal money laundering activities. These speculations stem from her deep cooperation with Chinese companies and officials, as well as her sensitivity to the flow of funds between China and the United States. • Resource smuggling or other economic crimes: Some reports speculate that it may be related to rare earth and other resource smuggling cases, or other economic crimes. Her business involves Chinese and American enterprises, with an annual import factoring flow of up to 2.6 billion euros, which may trigger national security or interest reviews.