Established in 1964, Jiaozuo Zhongzhou Carbon Co., Ltd. (hereinafter referred to as "Zhongzhou Carbon o HSJ Carbon"), is a scientific and technological joint-stock enterprise engaged in the production, R&D and sales of carbon products, with total investment of 700 million, and having more than 460 employees, including more than 50 technicians and R&D staff. The registered trademark of Zhongzhou Carbon is the Black Triangle Brand. As the well-known domestic carbon industry enterprise, we can produce 50,000 tons of carbon products annually. Among them, the production capacity of the ultra-high power graphite electrode is 30,000 tons/year. The electrode with fine structure has national patent and is the only import substitute in China. The products are widely used in electric arc furnace, submerged arc furnace producing alloy steel or other metal, non-metal materials and other fields, and sold well all over the country, and were exported to Europe, America, Southeast Asia and other countries and regions. Based on more than 50 years of R&D, production and operation history of carbon products, Zhongzhou Carbon has established a full set of effective management system, passed the ISO9001 quality system certification, and its product quality and process technology have reached the international advanced level.