As a world-renowned Chinese manufacturer, DOS Group has been at the forefront of powering critical infrastructure projects across six continents. With over two decades of expertise, we specialize in designing, producing, and delivering high-performance product for voltages ranging from 1kV to 500kV, catering to industries as diverse as renewable energy, urban development, marine engineering, and industrial automation. Our commitment to innovation, precision engineering, and sustainability has solidified our reputation as a trusted partner for international clients seeking reliable, customized, and future-ready energy transmission solutions.

Headquartered in China, DOS Group operates state-of-the-art manufacturing facilities equipped with advanced technologies and adheres to ISO 9001,  RoHS, ASTM, BS, DE,NFC standards, ensuring global compliance and exceptional quality. Our products are trusted by leading utilities, energy developers, and infrastructure builders in 100+ countries, including Europe, Africa,South America, North America, Southeast Asia, and the Middle East.