On July 6, the price of a medium-sized carbon black in Linfen, Shanxi Province was raised by 150 yuan/ton. Among them, the price of N220/N550 was suspended. The price of N330 was 7500 yuan/ton, and the price of N660 was 7500 yuan/ton. The company mainly produces carbon black N330, N326, N550, N660 and other models, with an annual production capacity of 80,000 tons.