London—As the geopolitical fight continues between the U.S. and China over the future of TikTok, Chinese owner ByteDance has moved forward with plans to open its first non-U.S. headquarters for the short-form–video app in the central London district of Farringdon, according to a person familiar with the matter.

It won’t be smooth sailing. As some of Prime Minister Boris Johnson’s allies want him to take a tougher stance against China, U.K. ministers have been circulating an internal government briefing outlining some of the issues that would need to be resolved before TikTok could set up shop in the country, according to a person familiar with the matter.