you should apply for a business visa with the following documents:
A. Your valid passport with at least 6 months validity left and 2 blank pages.
B. A truly and completely filled application form affixed with one passport-sized photo.
C. A Visa Notification Form issued by Chinese authorized unit.
D. Invitation letter from a partner company of China.
E. Hotel reservation in China and round-way air tickets.

Dear Sirs,

Thank you from my heart for your kind reply on my e-mail and i would like to inform u that i requested to provide us with the list and addresses of the leading computer products companies in your esteemed country as my sponsor wants to extend the activities of his establishment.

Thank your for your mutual co-operation and your help.

Thanks.