travelling to china for the first time, purely on wholesale buying business , how do i obtain visa

You need to submit the following documents to the Chinee Embassy in Nigeria:
1.One completed Visa Application Form of the People's Republic of China with a recently taken passport photo stuck on it
2. "Invitation Letter of Duly Authorized Unit" or "Confirmation Letter of Invitation"
3. One formal introduction letter from the your company to tell your identity, the purpose of visit to China, and supposed duration of stay in China.
4.The original and one photocopy of your ID card. (The original will be returned at the interviews).
5.The original and one photocopy of your certificate of incorporation. (The original will be returned at the interviews).
6.Hotel reservation in China and round-trip ticket between Nigeria and China.
7. Recent bank statement of account.
8.Photocopy of applicant's passport data page and all the Chinese visas.
9.A complete list of the documents you submits.
10. Any other documents the Chinese Embassy requires.

Good luck!