Human rights violations in Xinjiang - where more than one million Uyghurs are estimated to have been detained in 're-education' camps - have been so severe that the UK, US, EU and Canada announced coordinated sanctions against Chinese officials in March. As such, rights groups have been calling for companies to rethink their footprint in China.

Chinese birth control policies could cut between 2.6 to 4.5 million births of the Uyghur and other ethnic minorities in southern Xinjiang within 20 years, up to a third of the region's projected minority population, according to a new analysis by a German researcher.