Other costs are related to a number of factors, and according to the information you have provided, you can roughly estimate:
Customs clearance agent fees and the cost of the port authority, the cost of the shipping company can be controlled within 3,000 yuan.
Additionally, the towing fee from the Ningbo Port Authority to your factory depends on the distance.
Additionally, if it is within the scope of the national encouragement program, you can apply for a tax exemption form to reduce tariffs, you can try to apply.