Can I know how to apply for business visa to China? What are the document needed?

Daniel, you must have Malaysian passport, right? If so, you need to prepare your passport, application form, a recent passport, an invitation letter from your Chinese trade partner and invitation letter from duly authorized Chinese unit (required sometimes) and then submit these materials to the CVASC branches in Malaysia. If your application is granted, you can pick it up on the fourth working day.