Guangzhou handles immigration.

Legal analysis: You can receive your passport in a week or two at the earliest, and the originals of other materials will be returned to you.

Legal basis: Article 9 of the Measures for the Administration of Exit and Entry of People's Republic of China (PRC), China citizens shall apply for passports or other travel documents when leaving or entering the country.

China citizens who want to go to other countries or regions also need to obtain visas or other entry permits. However, unless the China government has signed visa exemption agreements with other governments or the Ministry of Public Security and the Ministry of Foreign Affairs provide otherwise.

China citizens who leave or enter the country as seafarers and work on foreign ships shall apply for a seaman's certificate according to law.