I need to visit china for business,

You need to prepare those documents:
1. Your passport and copy of its data page
2. The completed application form affixed with a passport-style photo
3. An invitation letter from a duly authorized unit
4. An invitation letter from your trade partner in PRC
5. A covering letter from your company
6. Your company’s bank statement within recent 3 months
7. Copy of your company’s business registration certificate

Thank you so much for your support