I am an US citizen and I will apply for the China Talent Visa (R VISA) - rush service.

I was invited to deliver 5 lectures at Minzu University of China (Beijing), so I have already completed the "Application form for confirmation letter for high level foreign talents" and "the visa applicatioin form of the People's Republic of China", which I will bring with me to the Chinese Consulate in Chicago sometime this week. Apart from bringing my current passport, do I need to bring any extra documents to apply for the R Visa?

Thank you very much in advance for your kind reply.