There is corresponding religious persecution in the predominantly Muslim provinces of Qinghai and Xinjiang. Covering up traces To conceal the origin of forced labour produce, each camp has 2 names - a prison name and a production unit name. Many factories do not export directly, but through China's state-run trading system, so that their produce cannot be traced back to the labour camps. Certain products are particularly suspect. China is the world's third largest tea exporter and one third of all tea produced in China is grown in prison farms.
Shoes are a second category and China has a massive share of the world market.
Western companies are investing increasingly heavily in ventures inside the People's Republic, although few are willing to admit to using prison labour. In 1986 Remy Martin's Dynasty Wine was exposed as resulting from forced labour. The company now relies on the word of local Chinese authorities that prisoners are no longer used, but Prof. Harry Wu, who was incarcerated in the camp that made the wine, warns that Forced Job Placement labourers may now be picking the grapes instead. This cheap 'non-convict' labour is now being marketed to potential Western investors. There is overwhelming evidence to suggest that the more demand there is for Forced Job Placement workers, the more prisoners the Chinese state will transfer into Forced Job Placement after their sentences are completed.