Kori have advanced, professional, standardized R&D design platform, and we are the High power rectifier system engineering technology research center of Hunan province. Our technical team are guided by senior professor and engineers, integrate latest technology andown severalcore technology i.e. powerconversion, reactive power compensation and harmonic filtering, simulation andsystem integration etc. We have more than 200 independent intellectual property rights, won 3 provincial science and technology progress awards, 1 provincial science and technology achievements, and we are responsible for the research and development of China’s torch program project and China’s key new products. We cooperated with key universities and research institutes and are the Provincial-level demonstration base for industry-university-research cooperation. We formed the technology innovation system by combining industry, university and research. We are the promoter of the technological progress of China's rectifier industry.