You need a business visa to China, sir, the required documents are as follows:
1.One completed visa application form with a recently taken passport photo stuck on it;
2. Official invitation/confirmation letter issued by an authorized unit in China (this refers to the form of visa notification issued by the Chinese government departments, companies and social organizations authorized by the Chinese Foreign Ministry. The Chinese company who gives invitation knows how to get this form).
3.One formal introduction letter from 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 your 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.