Founded over 100 years ago, Yamecha Kumaen produces gyokuro, sencha, matcha, and wakoucha in Joyomachi area of Yame in Fukuoka. Kumaen is known for their exceptional Yame Dento Hon Gyokuro, a style of gyokuro that must follow strict, traditional guidelines, such as honzu straw shading and hand-picking. Their Dento Hon Gyokuro consistently wins many awards, with their 2017 harvest even receiving 1st place in the Gyokuro division of the National Tea Competition 2017, with a full score of 200 points.
In addition to the ubiquitous Yabukita, they also grow Saemidori, Samidori, Okumidori, Okuyutaka, Tsuyuhikari, Asatsuyu, Hikari-tsuyu, and Kirari 31 for sencha, tencha, and gyokuro production. They also produce wakoucha using the Benifuki and Benihikari cultivars.