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Usually there should be no problem as long as you got every necessary document that will be demanded by the US embassy in China. Yet several concerns do exist:
1. How large is your employer? It will look much less persuasive to the immigration officer if yours is a Mama-Papa type of business;
2. Before you go, absolutely check with your company lawyer;
3. If you have the luxury of time and money, go to a US embassy/consulate in Canada, as in 30 days, you don\'t need a visa to come back to US from Canada so you can always come back even if you get declined by US embassy/consulate in Canada;
Good luck and enjoy your trip!