FIELD LISTING :: LAND BOUNDARIES. The World Factbook. [30 January 2020]. China total: 22,457 km border countries (15):{...}Tajikistan 477 km, {...}Tajikistan total: 4,130 km border countries (4): {...}China 477 km, {...}
Alex Sodiqov. Tajikistan cedes disputed land to China. Eurasia Daily Monitor (Jamestown Foundation). 24 January 2011, 8 (16) [23 September 2018]. On January 12, the lower house of the Tajik parliament voted to ratify the 2002 border demarcation agreement, handing over 1,122 square kilometers (433 square miles) of mountainous land in the remote Pamir Mountains (www.asiaplus.tj, January 12). The ceded land represents about 0.8 percent of the country’s total area of 143,100 square kilometers (55,250 square miles).{...}At the time of independence, Tajikistan inherited three disputed border segments, constituting about 28,500 square kilometers (11,000 square miles), which China and the Soviet Union had been unable to resolve. In 1999, Tajikistan and China signed a border demarcation agreement, defining the border in two of the three segments. Under the 1999 deal, Dushanbe ceded about 200 square kilometers (77 square miles) of land to Beijing (http://www.ca-oasis.info/oasis/?jrn=109&id=817).
China Report Political, Sociological and Military Affaris No. 363(PDF). United States Joint Publications Research Service: 1. 18 November 1982 [11 January 2020]. (原始内容存档(PDF)于2020-01-11) –通过Defense Technical Information Center. If we open up the Atlas of the People's Republic of China we will find that the region of the Pamir, the western extremity of Xinjiang, from the Wuzibieli [Uzbel] Pass1 to the south down to the Kekelaqukaole Peak (which the Soviet Russians call "Pavel Shveikovsky Peak") is designated as a not limited area.