Handling an anti-dumping investigation

China has been the target of numerous anti-dumping lawsuits from different countries for years now, but it appears that the government is beginning to scrutinise foreign companies' exports into China. I just heard about a number of US automakers being accused of dumping certain vehicles into the country. I'm becoming slightly concerned because I've encountered some domestic PRC competitors who have lamented openly about my company “dumping” our export goods into China. This is absolutely not true, but I am still worried they will make a formal complaint to the authorities. I know very little about anti-dumping laws in China, so:

What should I do if an anti-dumping investigation is initiated against my exports to China?

The international perspective