Ngunguru is one of three "factories" that form the Tekangu Farmers Cooperative Society. A factory is a wet mill in Kenya that serves a particular micro-region. Ngunguru is interesting in that it brings has member farmers from both the Mt. Kenya slope and the Aberdare zone: It serves farmers of Thiu sub-location in Kirimukuyu in with the Aberdare on one side and Mt. Kenya on the other. It's a beautiful location, averaging 1700 meters, and the wildlife list I have for the vicinity lists snakes, deer, hare, weaverbirds, owl and hawks. I'll have to look for a weaverbird next time I am there! Tekangu is a really nice coop, with Tegu and Karagoto being the other 2 factories, and often nice coffees as well. The AB indicates bean size and not a quality grade. Ab coffees can get looked over very frequently because of the common misconception that it's a grade indication, but many of the most exciting coffee from Kenya that I've had have been AB's!