On August 21, a large factory in Shanxi quoted carbon black. The price of wet N220 was 9000 yuan/ton, wet N330/660 was 7800 yuan/ton, wet N550 was 8400 yuan/ton, wet N326 was 7900 yuan/ton, and wet N375 was 8600 yuan/ton. The carbon black factory is a new energy industrial enterprise mainly engaged in deep processing of coal tar, carbon black production and fine chemical production. It now has 11 carbon black production lines with an annual production capacity of 450,000 tons.