China work permit Indian living in Seoul, South Korea

You can't apply for the work permit yoursele. You should ask your employer in China to apply for it for you from the Ministry of Labor and Social Security of the PRC with their business license, report of reasons for employment in detail, Application For Recruiting Foreign Worker In China, Copy of your passport, letter of intention for employment signed by you, your curriculum vitae, copies of educational diploma and credentials of the foreigner required for the performance of the job and your health certificate.