I am an Indian, working in Saudi Arabia. Recently I got a job offer in shenzhen, they are asking me to come on business visa and convert it to work visa while working over there. I checked and found that for business visa, I need company letter from my current company. If I resign, I'll not get from there. Could you please tell me the exact document requirement for processing business visa in this case.If company letter is required, what needs to be written inside it, in my case.

Your earlier reply, Highly Appreciated!!

With Greetings,
Amit Arora