The US Commerce Department has said it is adding 28 Chinese government organizations and private businesses, including eight tech giants, to its so-called Entity List for acting against American foreign policy interests.

What does that mean? The move effectively bars any US companies from selling technology to the blacklisted firms and organizations without US government approval.

Why? The US says they have been involved in human rights violations against Uighurs and other predominantly Muslim ethnic minorities in the Xinjiang region.