Henan Soonhi Industrial Co., Ltd. is a subsidiary of Soonhi Corp. which located in Henan province China. Soonhi Corp. share holding of one big factory which manufacture graphite electrode more than 25 years in China.The production base covers an area about 100,000 square meters and reaches 60,000 tons annual capacity of graphite electrode. Soonhi graphite electrode base have the complete production process with raw material preparation, mixing ,extruding, roasting, impregnation, graphitization, physical and chemical inspection and mechanical processing. The graphite electrode is made of high-class petroleum coke and needle coke as main raw material and coal tar as binder. It is made by raw material calcining, batching, mixing, extruding, roasting, impregnation, graphitization, and machining process. Graphite electrode is widely used in electric arc furnace and refining furnace for steelmaking , smelting ferroalloy, yellow phosphorus, metal silicon,etc. According to the quality index of graphite electrode, it can be divided into regular power RP, high power HP, standard ultra high power SHP and ultra high power UHP. Know as LF/EAF/SF We have graphite electrode UHP,SHP,HP,RP with dia. 100-980 mm and length 1600-2700 mm. The graphite electrode is produced strictly on domestic and international technical standard, and all its index are better than the regular value of these standards. Soonhi Corp. also has two wholly-owned subsidiaries which manufacture refractory materials one located in Henan and Liaoning province China. Soonhi refractory base owned environmental protection 1800â high temperature tunnel kilns.1250 automatic hydraulic machine, 630 tons numerically-controlled electric screw presses, microcomputer controlled automatic batching system, a variety of testing equipment. Soonhi Trading Limited is also remarkable subsidiary of Soonhi Corp. which registered in London, UK and HongKong. Sharing the resource of whole Corp., the products of Soonhi Corp. export all around the world. Faithfully Soonhi Corp.