China Customs data is prohibited by regulations, and there is no front-line China import and export data. The data of China's importers and exporters on the foreign trade network are back-washed using the transaction data of China's imports and exports to 31 front-line trading countries (that is, the data of China's exports to these 27 countries). There must be defaults in the data. In the database of foreign trade states, there are more than 1.2 million Chinese exporters and 100,000 buyers. If your trading partners or counterparts are in these 27 trading countries, then you can make good use of Chinese exporter data to develop and maintain client.