President Joe Biden signed the Protecting Americans from Foreign Adversary Controlled Applications Act, giving ByteDance a defined window to divest TikTok's US operations or face a ban on US app stores.
The legislation, attached to a foreign-aid package, defines specific countries and applications subject to its provisions, with TikTok representing the largest immediate target.
ByteDance and TikTok filed legal challenges arguing that the law violates First Amendment protections and constitutes an unconstitutional bill of attainder targeting a single company.
Beijing reiterated its long-standing opposition to a forced sale and indicated that any transaction involving TikTok's recommendation algorithm would be subject to Chinese export controls on AI technology.