TikTok is planning to open a $500m data centre in Ireland.
It will store videos, messages and other data generated by users from Europe from the short-form video-sharing app.
Until now all of its users’ records were stored in the US, with a back-up copy held in Singapore.
The declaration comes at a time when President Trump threatened to forbid the app in the US on the grounds its Chinese ownership makes it a national security risk.
TikTok’s Beijing-based parent company Bytedance denies the charge. But, it is in talks to sell its US, Canada, Australia and New Zealand operations to Microsoft.
