What are the nine cross-border ethnic groups in Xinjiang Uygur Autonomous Region?

There are many cross-border ethnic groups among Central Asian countries, and there are 8 cross-border ethnic groups with China and Xinjiang. Namely Kazak, Kyrgyz (Kirgiz in Xinjiang), Tajik, Russian, Tatar (tatar people in Xinjiang), Uzbek (Uzbek in Xinjiang), Uygur and Han. Modern ethnic groups such as Kazak, Uzbek, Kyrgyz, Tajik and Turkmen are almost all formed by the continuous integration, absorption and assimilation of Saizhong, Jiankun, Wusun, Xiongnu, Turkic, Sogdian and later clans or tribes such as oguz, Chayas, Yimo, Geluolu, Qidan and Mongolia. Central Asia, located at the crossroads of Asia and Europe, has been an important link between East, West, North and South civilizations since ancient times, and has had close economic and cultural exchanges with China in history, thus forming more cross-border ethnic groups with China and Xinjiang.