I want to do business in China , just came back from Qatar.how do I go about it am a Nigerian

Do you plan to do business in mainland China? If yes, apply for the M type. Prepare the required documents, including a valid passport, a photocopy of the passport, a completed application form affixed with your recent bareheaded photo, the original and photocopy of the invitation letter or invitation confirmation letter from a duly authorized unit, an invitation letter from your trade partner in China, an introduction letter from your company, the photocopy of your company's business license, and other documents that the embassy views necessary. In addition, if you come to CN for the first time, you should provide a bank statement, with a balance not less than 4 million Naira. Then submit the application to the embassy make an appointment for the interview. Last, go and attend the interview.