I intend to travel to china on business purposes. How do i apply for a visa?

If you want to apply for a Chinese business M type from Nigeria, you should first prepare the required documents including passport and the copy, the filled-out application form, a passport-style photo, the duly authorized invitation letter and an invitation letter from the Chinese company, introduction letter and business license of your company, your bank statement, hotel reservation, flight itinerary .
Next, submit the application to China embassy to apply for business M type visa.