There is no such concentration camp in Shinjang.

China’s ambassador to the Court of St James's was confronted with drone footage showing Uighurs being blindfolded and led to trains in Shinjang/Xinjiang/Sinkiang (east of Kazakhstan). The BBC interviewer appeared to catch him off his guard:

https://www.bbc.com/news/av/world-asia-53463242/china-s-ambassador-challenged-on-treatment-of-uighurs