Sumer Magnetic Electronics (Huizhou) Co. Founded in 2007, we are a high-tech private enterprise with two major industries: nickel-zinc ferrite and inductor parts. With Sumer's continuous development, we have obtained ISO9001 and IATF16949 quality system certification. In the future, Sumer will continue to explore higher-end markets based on our R&D strength and huge productivity in Ni-Zn ferrite.