The two are not the same company. One is Yida and the other is Extra. Yida chewing gum is one of the products of the American Wrigley Candy Company. It also has some familiar brands: Green Arrow, White Arrow, Yellow Arrow {these are It contains sugar} Yida is a sugar-free chewing gum. Yida toothpaste is produced by a daily necessities company in Guangzhou. Some time ago, there was a lawsuit due to alleged infringement of the trademark name of Yida chewing gum