1. The industrial and commercial tax license is now three certificates in one, and an environmental assessment and emission permit is required.

2. Open a bank account.

3. After the product is produced, it needs national GB29518-2013 certification, German AdBlue certification, and CGT certification from the China Internal Combustion Engine Association.

A business license is a certificate issued by the industrial and commercial administration authority to industrial and commercial enterprises and self-employed individuals to allow them to engage in certain production and business activities. Its format is uniformly stipulated by the State Administration for Industry and Commerce.

The registration items include name, person in charge, amount of funds, economic composition, business scope, business method, number of employees, business period, etc. The business license is divided into original and duplicate, both of which have the same legal effect. The original copy shall be placed in a conspicuous place at the company's residence or business premises. The business license shall not be forged, altered, rented, lent or transferred.

Industrial and commercial enterprises or self-employed individuals without a business license are not allowed to open business, engrave official seals, sign contracts, register trademarks, publish advertisements, and are not allowed to open bank accounts.