The Theta Amano Trade Center was a trading establishment which housed a Klingon consulate.
In 2346, after receiving medical treatment at Starbase 24, Kahlest, with the assistance of the consulate, returned home to Qo'noS. Two decades later, this center, and the consulate, were mentioned on the USS Intrepid's Medical Mission Files. (TNG: "Sins of The Father")