Alibaba Group's stock price tumbled 5% amid reports that the company could be added to a Pentagon blacklist of Chinese firms with alleged ties to the military. The potential designation would restrict American investments in Alibaba and could trigger further sanctions on the e-commerce giant.

The Pentagon's list, which currently includes companies like Huawei and SMIC, has been a source of tension in U.S.-China relations. If Alibaba is added, it would join a growing roster of Chinese tech firms facing increased scrutiny and potential economic penalties from Washington.

Investors reacted swiftly to the news, with Alibaba's American depositary receipts experiencing significant selling pressure. The stock decline reflects growing concerns about the company's exposure to geopolitical risks and potential restrictions on its access to U.S. capital markets. Analysts note that such a designation could have far-reaching implications for Alibaba's business operations and future growth prospects.