Sorry Esquel, evidence of slave labour isn't actually needed for American sanctions. These are always about destroying the economy & lives of ordinary civilians to cause discontent in local populations, your dozens of Uighur employees of decades included.
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These are the attacks America's been waiting to ramp up on after a sufficient portion of their population believes their state-sponsored "evidence" full of contradictions. They know how easy this stuff is and that their people are no less gullible, even after the "WMD" experience
If China's terrorism problem wasn't under control, and terrorists fighting with groups the US once funded, were still killing people in China, they wouldn't need sanctions. Conflict is the goal, but that's hard to do when Uighurs are increasing in population & finding good jobs. 
The solution is obvious, dust off the old sanction playbook (although its used so often it probably hasn't had the chance to collect dust) and destroy the lives of ordinary Uighurs in the name of liberation. Just make sure not to survey people previously "liberated" by America.
If you still believe the validity/honesty of America's sanctions after everything, including bombing a Sudan factory making most of the life saving medicines for their children, increasing America's civilian-killing sanction's effectiveness, time to ask who the real bad guys are.
