Liyuan Haina Group was founded in 1997. It is a national high-tech enterprise and a national green manufacturing factory. The company committed to the research and development and manufacturing of IGBT based rectifiers, SCR rectifiers, Pulse Power Supplies, networked intelligent control systems and harmonic control devices. It is the earliest established professional rectifier manufacturer in China. Electrolytic copper foil rectifiers and PCB electroplating rectifiers have a large domestic market share. The company continues to absorb cutting-edge technologies from related industries in the world (Italy, Germany, the USA and Japan), and has a number of independent and forward-looking core technologies with domestic and foreign influence, many patented technologies, and also pays great attention to energy-saving and intelligent breakthroughs and innovations in power supplies in various application fields. The company has three R&D centers at our Jiujiang headquarter and Shenzhen branch, focusing on R&D and innovation, especially in the direction of energy-saving and green power supplies research.