The Chinese Communist Party (CCP) does not own 50% of TikTok.
TikTok is owned by ByteDance, a company incorporated in the Cayman Islands with a complex ownership structure.
ByteDance is not directly owned by the Chinese government; however, concerns have been raised about the influence the CCP might have over ByteDance's operations. It's noted that ByteDance has a CCP committee, and there are reports about the Chinese government having a "golden share" in one of ByteDance's subsidiaries, Beijing Douyin Information Service, which runs Douyin, the Chinese version of TikTok. This "golden share" is reported to be 1% of the company, not 50%. The majority of ByteDance is owned by global investors, with the rest split between founders and employees.
@Grok