The original business license is required for the decompression of the car. According to the provisions of Order 124 of the Ministry of Public Security, if an application for the cancellation of mortgage registration is made, the motor vehicle owner shall fill in an application form, which shall be jointly applied for by the motor vehicle owner and the mortgagor, and shall submit the identity certificates and motor vehicle registration certificates of the motor vehicle owner and the mortgagee. All the above materials shall be provided with originals, reviewed when handling business, and the copies of corresponding identity certificates shall be kept in the vehicle archives. Because the car purchase loan is a loan mortgage contract signed with the company. If the loan is decompressed, the loan company must go through the decompressing procedures together, and then the loan company must take the business license to handle it. Therefore, the original business license containing the unified social credit code of the company is still required for the vehicle decompression.
 Legal basis
 Article 27 of the Decision of the Ministry of Public Security on Amending the Provisions on the Registration of Motor Vehicles applies for the cancellation of mortgage registration, the motor vehicle owner shall fill in the application form, which shall be jointly applied by the motor vehicle owner and the mortgagor, and submit the identity certificates of the motor vehicle owner and the mortgagee, and the motor vehicle registration certificate. All the above materials shall be provided with originals, reviewed when handling business, and the copies of corresponding identity certificates shall be kept in the vehicle archives.