Since 2010, customs will implement customs clearance and customs declaration data comparison, the specific comparison items are as follows:

1, business units (compared to the customs ten code, Chinese not limited);

2, HS (contrast ten);

3, the number of declarations on the declaration can not exceed the number of customs clearance;

4, country;

5, customs clearance can not exceed 20 items;

6, can not pass the validity period;

7, the declaration of goods on the goods and the order of the number of goods and customs clearance on the corresponding items on the number and order of the same.

         If the above items do not match, the Customs will implement the computer mandatory refund. Of which the first seven items, although the computer does not make a mandatory refund, but should try to meet, otherwise it may lead to manual withdrawal.