Xian XD Arrester Co., Ltd. (Xian XD Arrester for short) is a large state-owned company for specialized research and developing, design, manufacturing and administration of surge arresters other over-voltage protection devices and its accessories, inspection facilities, which is combined by relative business of former Xian XD HV Porcelain Insulator Co., Ltd. and Xian Electro Ceramic Research Institute under optimization by Xian XD Group. The company is specialized manufacturing enterprise with the investment from Xian Ronghua New Material Co., Ltd, which is affiliated to Xian XD Group. Xian XD Arrester is located at Jinghe Industrial Park of Xian Economic Developing Zone, which construction area is 25904m2 for office and production. The registered capital is 80 million RMB with annual capability 500 million RMB for varies DC & AC under 1000kV. The arrester industrial is based on the key technique and equipment of zinc oxide surge arrester developed by Xian XD HV Porcelain Insulator Co., Ltd. and Xian Electro Ceramic Research Institute jointly at 1985. With continuous development and research during recent 20 years, The company has created many R & D projection new in domestic, which is capable of R&D for 1000kV and below varies arresters. The arresters manufactured by the company has supplied to Three Gorge, Western Electricity to Eastern, ±800kV EHV DC transmission project, 1000kV AC transmission project and other key national project. The company is affiliated to XD Group with employee 325, while technician presents 20% of total employee. The company has strong backup of technique, processes spray drier, firing furnace for metal oxide resister introduced from HITACHI, Japan. The company processes advanced inspection and test facility, which is one of company who can perform inspection and test according to IEC . After optimizing in n arrester industrial, Xian XD Arrester is strengthened and enhanced based on current advantage of manufacturing and R&D.