Founded in 2004, Guangzhou KATOY Electronics Co., Ltd. is a manufacturer of Electronic Transformers and Magnetic Components. Our product portfolio includes High-Frequency Transformers, Low-Frequency Transformers, Toroidal Transformers, Audio Transformers, Inductors, Reactors and other custom magnetic components for applications in welding equipment, professional audio, renewable energy & energy storage, industrial power supplies, industrial automation and medical equipment.