I'm URA fernando srilanka i need to get business visa to China.

First thing is to prepare all the relevant documents: your passport and its copy, a fully filled-out application form affixed with a passport-sized color photo, the government approval letter, an invitation letter from your trade partner in China, local company covering letter, recent 3-month bank statement, and copy of business registration certificate.
Next thing is to submit the application to the embassy of China to apply for the business M visa.

Thank you very much