ByteDance Ltd. will be required to seek Chinese government approval to sell the U.S. operations of its short-video TikTok app under new restrictions Beijing imposed on the export of artificial intelligence technologies, according to a person familiar with the matter.

AI interface technologies such as speech and text recognition, and those that analyze data to make personalized content recommendations, were added to a revised list of export-control products published on the Ministry of Commerce’s website late Friday. Government permits will be required for overseas transfers to “safeguard national economic security,” it said…

Additional approval in Beijing is likely to delay and could undermine any transaction. Because the Chinese government review will take time, the TikTok deal may be delayed until after the U.S. elections in November, the person familiar said.