JIANGXI DAYOU SCIENTIFIC & TECHNICAL CO., LTD. is a joint-stock private enterprise and even more is the excellent high-tech enterprise in Jiangxi province, which was established in 2001. The headquarters is covered an area of 46670m2 and located in the economic and technological development zone of Yichun city, Jiangxi province. It is one of the main production bases in China, which produces amorphous nanocrystalline soft magnetic cores and various magnetic powder cores(consists of Sendust magnetic powder Cores, FeSi magnetic powder cores, Fe-based amorphous and nanocrystalline soft magnetic core ). Magnetic powder cores has undertaken the National Innovation Fund for small and medium-sized technology-based, the Electronic Information industry development fund, the industry in the technology transfer funds and a variety of national key new product trial project implementation. The technical center of DAYOU enterprise upgraded to provincial engineering technology center successfully in 2010. And the technical center of DAYOU enterprise has established the cooperating relationship with Nanchang University, Central South University, NCHU and other famous universities step by step. DAYOU enterprise has passed three management system demonstrations, supervision and evaluation, including the Quality System (ISO9001), the Environmental System (ISO14001), and the OSH System (OHSAS18001). DAYOU enterprise awarded the" national user satisfaction with product quality", "the after-sale service satisfaction with the Top Ten", the "product quality to feel relieved after-sale service satisfaction" "the good faith , the Uygur power model unit" in the magnetic materials industry in China. It is one of the excellent high-tech enterprises, the advanced private technology enterprises and the" technology innovation top 10 units "of information industry in Jiangxi province.