Shaft kilns having a high thermal efficiency are mainly used for the calcination of coarse limestone. In order to use the undersized limestone that cannot be calcined in such facilities, however, rotary kilns are utilized irrespective of their lower thermal efficiency.

Since its founding in 1975, our company has been guided by the principle that realization of thermal efficiency in the production of undersized limestone equivalent to shaft kilns would make a substantial contribution to more efficient utilization of Japan's natural resources. Devoting our all-out efforts to this task, we succeeded in developing the "CHISAKI KILN," equipped with a rotary hearth. The first plant was constructed for Kunnepu Lime Ind. Co. of Hokkaido. With performance that proved fully up to expectations, the new plant soon attracted inquiries that has led to our building of some 90 plants in Japan and overseas, including shaft kilns for hard burning.

Another major development for Chisaki Corp. occurred in 1989, when Dr. Daizo Kunii, professor emeritus of the University of Tokyo, brought his expertise as technical advisor. Dr. Kunii proceeded to conduct research and development into pre-heater of rotary kilns and externally heated kilns.

In the future, we shall continue to strive to become a global enterprise with environmentally friendly products. In this regard, I shall be grateful for your encouragement and support.

Masahiro Sakai, CEO