On June 25th, Wal-Mart China officially launched the Wal-Mart China blockchain traceability platform. The first batch of 23 kinds of products have been tested and entered the platform. In the second half of this year, more than one hundred kinds of products will be launched in succession, covering more than ten categories including fresh meat, vegetables, seafood and own brands, which will help Wal-Mart practice the traceability of goods. strategy. By scanning the QR code on the product, the customer can know the source of the product and the geographical location information received by Wal-Mart, the logistics process time, and the product test report.