Founded in 2004, Guangzhou KATOY Electronics Co., Ltd. specializes in the design and manufacture of Electronic Transformers and Magnetic Components. With over 30 years of industry experience, we supply High-Frequency Transformers, Low-Frequency Transformers, Toroidal Transformers, Audio Transformers, Inductors, Reactors and other custom magnetic components for welding equipment, professional audio, renewable energy & energy storage, industrial power supplies, industrial automation and medical equipment.

Our manufacturing facility covers more than 5,000 m² and is supported by over 300 employees, including an experienced engineering and R&D team. An integrated quality management system covers engineering, manufacturing, inspection and testing, enabling rapid development, prototype production, OEM/ODM manufacturing and volume production. Backed by decades of manufacturing experience, KATOY provides one-stop support from product design and prototype development to mass production, serving listed companies and industry-leading manufacturers in both domestic and international markets.

KATOY is committed to continuous improvement in engineering, manufacturing and quality management. Our company has obtained multiple ISO management system certifications, and selected products comply with international standards such as CE and UL. We will continue to expand our capabilities in renewable energy & energy storage, industrial power supplies and intelligent manufacturing, delivering reliable products and long-term value to customers worldwide.