If this is your first visit to China, you may required to provide Your Character Certificate/Police Clearance Certificate, together with Your income certificate/up-to-date Personal Bank Statement, Your company's Registration Certificate (photocopy), A recommendation letter from your company/organization/ institution, A recommendation letter from Chamber of Commerce& Industry and your Tax Payment Receipt for last year (photocopy).
Your previous visas to other countries are helpful for your China visa application anyway.