In general, China Customs authorities end their statistical work on the last day of each month. However, in the Customs statistics, the importation date is that when the goods are released by the Customs, and the exportation date is that when the goods complete its formalities concerning Customs clearance. Therefore, the time in the Customs statistics may be inconsistent with the time of actual arrival of goods.

“Others” refers to the goods imported and exported by any entities in China that are not Chinese enterprises having import and export rights, and to the goods not falling within the scope of the trade modes listed.
Goods under other trade modes include the following:
Commodities bought by foreign tourists (applicable to export by tourists of small-lot order of goods no more than USD 50,000);
Public articles imported by permanent foreign organizations in China;
Samples for exhibition purpose which are imported by foreign commercial organizations in China and are not to be re-exported;
Samples for advertising purpose which are imported and exported by enterprises without import and export rights;
Other goods supplied free of charge through import and export;
Goods in petty trade with Taiwan;
Goods traded with Taiwan through petty commodities markets;
Articles for public affairs (including vehicles) purchased abroad and carried back home by China’s organizations stationed abroad;
Overlanded cargos and mis-discharged cargos by importation;
Smuggled goods and other illegal goods not declared when imported and disposed through auctions after discovered and seized by China Customs;
Imported automobiles for personal use;
Articles for public affairs and automotive vehicles resold to non-diplomatic organs or individuals within China by foreign diplomatic organs to China.

No. China Customs statistics does not take in the trade flows among the enterprises located in the zones under special supervision by China Customs.

Both imported and exported goods are subject to the measure units stipulated in the Catalog of Commodities under Customs Statistics for statistics on their quantity, weight and value.
In general, the weight for statistics is subject to the net weight, and the value for statistics is subject to the U.S. dollar terms, with imports subject to the CIF value and exports subject to the FOB value.

In trading activities, actual transaction prices are often denominated in various currencies. With respect to currency calculation and exchange-rate conversion in the value statistics, China Customs make its statistics respectively denominated in the Chinese Yuan and the U.S. Dollar based on internationally accepted practices and the requirements both in national economic statistics and in international goods-trade statistics.
At present, the China Customs Statistics Yearbook offers the import and/or export value totaled in China Yuan.