Ito En, Ltd. manufactures and sells green tea beverages in Japan and internationally. The company provides Japanese tea, black tea, and Chinese tea; coffee beverages; fruit, vegetable, and other beverages; and tea leaves, as well as yoghurt, milk, and other dairy products. It also manages eateries; and develops franchise chain store system. The company offers its products through convenience stores, supermarkets, general and mass retailers, vending machines, station stores, and other channels. The company primarily operates under the Oi Ocha, TULLY's COFFEE, and MATCHA GREEN TEA brands. It operates 112 specialty tea shops at locations, such as department stores, shopping malls, and airports in Japan. The company was formerly known as Frontier Tea Corporation and changed its name to Ito En, Ltd. in May 1969. The company was founded in 1964 and is headquartered in Tokyo, Japan.