The Federal Trade Commission (FTC) is investigating the U.S. business operations of fast-fashion retailer Shein Group, according to the company itself. Shein, which was founded in China and is now based in Singapore, revealed the probe in a filing related to its planned initial public offering in Hong Kong. The exact nature of the FTC's investigation and its commencement date were not disclosed by Shein.

An FTC spokesperson has confirmed the existence of the investigation but declined to offer additional details. Shein has stated its full cooperation with the FTC's inquiry. This investigation adds a layer of scrutiny to the rapidly growing online retailer, known for its ultra-fast fashion model and extensive reach among younger consumers.

The filing, intended to provide transparency for potential investors, highlights the regulatory attention Shein is drawing as it prepares for a significant financial event. The company's operational practices and business model have previously come under review from various groups concerning labor and environmental standards. The FTC's involvement signifies a formal governmental examination of its U.S. activities, the outcomes of which remain uncertain.