There is something to the fact that no one can dismiss the facts; Companies have been doing business in China for years, it isn't rocket science to recognize revenue if it is legitimate.
It is of no surprise that three (3) separate auditors have not acknowledged their attempts to record these operations as income. It simply isn't verifiable, and therefore non-existent.
Others can tell me all day that it is legitimate, however, the company, the auditors, and the filings say they aren't.
Dr H