Hi, welcome to the Framework forum!
Framework seems to be very interested in expanding to the international market, but the laws and tax details associated with selling internationally are extremely difficult to navigate, especially for such a small company. If you’re willing to pay a significant premium due to shipping and double tax, along with risking lack of warranty and service, it’s possible to order through a forwarding service. Otherwise, it’s probably best to just wait until whatever unspecified time Framework is able to work out the legal details for shipping to China.
(If you want more general-purpose information about this, a lot of international fans are stuck in a similar situation. Junaruga put together a really useful compilation of the relevant threads here.)