This live blog is now closed. You can read our latest reporting on the case here:

• US supreme court seems likely to uphold TikTok ban-or-sale law
• How would a TikTok ban in US work?

TikTok maintains it is not controlled by the Chinese government. It’s parent company, ByteDance, is based in China, but TikTok operates separately with headquarters in Singapore and the US. TikTok says its user data in the US is handled by the company Oracle.

Justice Samuel Alito asked TikTok’s lawyer if the company was owned directly by the Chinese government would he make the same arguments.