Dongguan Chang 'an International Trade City. According to Baidu map, Chang 'an International Trade City has a large number of merchants and suppliers, including food wholesalers and snack manufacturers. Chang 'an International Trade City is located in Chang 'an Town, Dongguan, with convenient transportation, close to Guangzhou-Shenzhen Expressway, subway station and other transportation hubs. Therefore, suppliers choose to operate in this place, making it easier to wholesale goods to other regions.