Do I need invitation for business visit

Shakeer, different invitation letters are required for different applicants.
1. For non-frequent travelers to China, the Original “Invitation Letter of Duly Authorized Unit” or “Confirmation Letter of Invitation” from Duly Authorized Unit" is needed.
2. For frequent travelers to China, documents on the commercial activity issued by a trade partner in China, or trade fair invitation or other invitation letters issued by relevant entity or individual is needed.