Hunan Kemeida Electric Co., Ltd, locating in Yueyang Economic Development Zone, Hunan Province, China P.R., is the big- gest high-tech enterprise in electromagnetic industry in Asia. Kemeida focuses on R&D and production of electromagnetic stirrer (EMS), power-saving lifting electromagnet, electromagnetic & permanent separator, cable reel and Tong Grabs and has got eight national patents like M-EMS for slab, multi-functional electromagnetic separator, non-contact electric controller, etc,. At the same time, Kemeida is honored as one of members in charge of national Torch Project, Hunan High-tech Enterprise, Hunan Information Demonstration Enterprise, and Electromagnetic Research Centre of Engineering & Technology of Yueyang.