Ningxia Tiantian Jinglongding Silicon Carbide Co., Ltd. Was established in 1997. Its predecessor was a collective enterprise undertaken by State Grid Ningxia Electric Power Co., Ltd. In September 2019, the company completed its restructuring and transformed from a state-owned enterprise to a private enterprise. The company has 215 employees, 180 professional and technical personnel, 30 people with advanced skill level, 158 people with intermediate skill level and above. The company now declares 10 invention patents and has obtained more than 20 utility model patent certificates. The company covers an area of about 218 acres. The company has two existing substations, including one 110KV with a capacity of 50, 000kVA; One 220KV with a capacity of 120, 000kVA, and the total capacity of the whole plant is 170, 000kVA. Starting from the initial 3000kVA smelting furnace in 1997, the company has worked hard and constantly innovated, and has been leading the development direction of the silicon carbide industry. The company has five silicon carbide smelting furnaces, two 8300kVA smelting furnaces and one 12500kVA smelting furnace., Two 40, 000kVA smelting furnaces, with a designed production capacity of 120, 000 tons/year. Among them, the 40, 000kVA smelting production line, which was completed and put into operation in 2013, is the silicon carbide smelting furnace with the largest single furnace capacity in the world. This production line adopts a number of independent patented technologies and uses the most advanced smelting process equipment, with high automation, low process unit consumption and high product quality. Relying on the smelting production line, the company vigorously develops deep processing. There are two rough crushing production lines with a processing capacity of 100, 000 tons/year; Five micro powder (Raymond mill) production and processing lines with a processing capacity of 30, 000 tons/year; Four jet mill production lines with a processing capacity of 15, 000 tons/year; Two screening production lines, The processing capacity is 50, 000 tons/year. It can produce different specifications and models of the first, second and third grade sand and granular sand. The micro powder processing can reach 1500 meshes, which can fully meet the needs of different customers.