Kuan language
Kuan, is a poorly classified Austroasiatic language spoken by about 1,000 people in Jinghong County, Xishuangbanna [Dai Autonomous Prefecture|Xishuangbanna], Yunnan, China. Li proposes that it is a Mangic language. Other possible affiliations include Palaungic, Khmuic, or even an independent branch of the Austro-Asiatic language family.