You remit it to the local patent agency. After remittance, just fax the receipt and details, contact person, phone number, etc. to the agency. If you still have questions, you can call the agency and ask. (Basically every province now has a patent agency in the provincial capital city. If you are in Jilin, go to the Changchun agency. The address and phone number are on the website of the State Intellectual Property Office.) If you apply electronically, you can also go through Pay online and the National Bureau will send you a receipt.