How to submit the priority examination of utility model patent in CPC?

How to handle the priority examination of patent application? Answer: For an application for a patent for invention that is in the substantive examination stage and an application for a patent for utility model or design for which the application fee has been paid, the priority examination materials can be submitted, including the priority examination request signed by the relevant department of the State Council or the provincial intellectual property office, explanations and corresponding certification materials, existing technology or existing technology information materials. In addition, the patent application for priority examination should be an electronic application, and it is suggested that the applicant adopt an electronic application in XML format to speed up the examination cycle.