While Beijing has repeatedly spoken out against Washington’s pressure on Huawei, it has remained relatively quiet amid TikTok’s recent struggles in the U.S. As the red-hot video app approaches a final sale in the U.S., however, the Chinese authority moved unexpectedly to make the deal more complicated to go through. On late Friday, China’s Ministry of Commerce updated its export control categories to cover artificial intelligence technologies. AI is the anchor of ByteDance products including TikTok, which has thrived on customized content surfaced by machines. The next day, China’s official Xinhua news agency quoted scholar Cui Fan as saying the updated rules could apply to ByteDance. He advised companies with ongoing deals to “halt negotiations and transactions so as to conduct the relevant procedures.” On late Sunday, TikTok’s Chinese parent ByteDance issued a statement saying it will “strictly follow” the new technology export rules and handle its “related export businesses.”