● On February 20, 2004, Zhongyu Investment transferred 50% of its shares to China-Canada Enterprise Co., Ltd., and the company was changed into a wholly foreign-owned enterprise.
● On May 3, 2004, KLOC-0, the company name was changed to Yuhuan Addis Copper Co., Ltd.
● In September 2007 15, Hanyu Sanitary Ware was absorbed and merged by Addis Copper.
● On April 6th, 2008, Addis Copper Company was changed into a joint-stock company.