Thank you letter

Jinzhou Great Wall Refractory Co., Ltd.:

Since the rotary kiln (4.43x52m) of zinc smelting system in our plant was put into operation, due to the improper selection of refractories, the aluminum chrome bricks used in the high temperature zone of the kiln from November 2003 to May 2005 have been forced to be replaced four times, of which the longest service life is 3.5 months and the shortest service life is 20 days. The production situation and economic benefit of our factory are seriously affected. And because of frequent kilns, labor intensity is high, I people have more complaints, affecting morale. As recommended by your company, our factory began to use the SA aluminum chromium spinel produced by your company in the rotary volatilizing kiln on May 23, 2005, and it needs to be replaced on December 25, 2005, so the production situation has been greatly improved. The service life of your SA alumina chrome spinel brick in the rotary volatilizing kiln of our factory has reached seven months, which exceeds the half year service life promise in the product sales contract of your company. I would like to express my sincere thanks to the company!

Caihanzi refinery of Liuzhou Huaxi Group Company

February 14, 20060