Ito En, Ltd. manufactures and sells green tea beverages in Japan and internationally. The company provides japanese tea, black tea, green tea, flavored tea, and chinese tea; coffee beverages; fruit, vegetable, and other beverages; and tea leaves. It also provides mineral water, carbonated drinks, and dairy beverages, as well as the purchasing, processing, and sales of raw materials. In addition, the company manufacture and sell vitamins and other supplement products. It primarily operates under the O~i Tea, Oi Ocha, TULLY's COFFEE, and MATCHA GREEN TEA brands. The company was formerly known as Frontier Tea Corporation and changed its name to Ito En, Ltd. in May 1969. Ito En, Ltd. was founded in 1964 and is based in Tokyo, Japan.