Koransha Co., Ltd. is a ceramic manufacturer with its headquarters and factory in Arita, Nishimatsuura, Saga. Its main products include luxury pottery and insulators. In addition to Arita, it also has a factory in Tajimi, Gifu. It was established in 1879 by Fukagawa Eizaemon, who used Arita ware techniques from the area to create the first ceramic insulator in Japan, and others. It is said to be the first corporation established in Kyushu.
