Get in touch with the publishing house. Some publishing houses in Yunnan have no proofreading departments, and the proofreading task of editors is very heavy. You can get in touch with their editorial department. If the proofreading level is really ok, you should be able to find some work. I am in this industry and know something. Things at work can't help you anyway, but if you have found a job, you can ask me what is unclear about the whole process.