Jiing Tung Tech. Metal Co. Ltd. (predecessor, Chang Ho Steel Corp.) was founded in 1994, in order to comply with the development trend, make the transition from industrial engineering fields into international trading business since 2001, it mainly majors in steel products business, and sets up the research and development department in the mean time to be engaged in the development of high technological metal products. Succeed in developing the process of press-forging magnesium alloys and earn the patent of newly press-forging process for magnesium alloys except that the trade undertaking grows up steadily in 2004. We are also awarded the invention of magnesium-copper composite, and five patent applications is under examination currently. Forged magnesium alloy and magnesium copper composite can be applied to the mobile phone, portable computer, so called 3C products , lighted automobile components, baton, screw…etc..