Since 1980, the compilation of Customs statistics follows the concepts and definitions recommended by the United Nations for use in international trade statistics, that isInternational Merchandise Trade Statistics: Concepts and Definitions, (IMTS).
Customs statistics coverall merchandise passing through the customs territory of PRChinaexcluding the following types of goods:temporary imports or exports,goods on lease for less than one year,personal effects of travelers,goods consigned to diplomatic missionsandgoods in transit.
Since 1995,goodsentering bonded warehouses or special customs control areas arerecorded as imports when placed into the warehouses from abroadand vice versa.Prior to 1995,suchgoods were not recorded as imports until being withdrawn from the warehouses forfinaluse.
Since 1992,an8-digit classification based upon the HarmonizedSystem(HS)has beenused for collecting and compiling trade statistics. The statistical nomenclatureof 2015contains about82938-digit commodity subdivisions: the first six digits correspond to the HS 2012, the 7th and the 8th digitsare national subheadings established for purposes of tariff, trade statistics or trade policy measures. SITC Rev.4isalsoused for trade analysis.During 1980-1991, customs statistics were classified using a 6-digitclassificationbased upon SITC Rev.2.
Quantities of imports or exports are recorded in units as specified for each classification subheading in the Nomenclature for China Customs Statistics. The weight recorded represents the net weight of goods.
Imports are valued on aCIFbasis and exports on aFOBbasis.
The country of origin is reported for imports and the country oflast-knowndestination is recorded for exports. The country of consignment is also recorded for imports and exports as additional information.