Exiled Muslim dissident condemns persecution of family members still in China.
Chinese authorities say it is one of the region’s most violent groups, labelling it a terrorist organisation and alleging that it has links to al-Qaeda.
The US has also put ETIM on a list of terrorist groups.
China has long claimed that militants among the region’s dominant ethnic Uighurs are leading a violent Islamic separatist movement in Xinjiang.
The Uighurs are Turkic-speaking Muslims with a language and culture distinct from the majority of Chinese.
Critics accuse Beijing of using claims of terrorism as an excuse to crack down on peaceful pro-independence sentiment and expressions of Uighur identity.
Chinese troops occupied Xinjiang at the end of the communist revolution in 1949, and in subsequent years the area has seen a steady influx of migrants from China’s overcrowded east.