More than 70 percent of the products that wholesalers and retailers sell on Amazon are produced in China, according to a survey conducted by Jungle Scout and published by the ECDB. The United States is the second largest producer of items sold on Amazon, accounting for 30 percent of all total goods sold through the e-commerce giant. The retailers surveyed were able to list several countries in terms of source locations, which explains why the total share is above the 100 percent mark.