The Thai proper are related to the Shans of Burma, the Siamese of Thailand and the Lao of Indochina. The Chinese segment of the Thai ethnic group is settled in Yünnan Province, where it numbers 580,000. It constitutes the Hsi-shuang-pan-na Autonomous Chou in the southern part of the province and shares the Tehung Autonomous Chou in the west with the Chingpo (Kachin). The Thai of the Hsi-shuang-pan-na Chou speak the Lü dialect, those of the Tehung Chou are more closely related to the Shans of northern Burma.