On May 25, the price of Shandong Aolong carbon black increased by 1000 yuan/ton. Wet N220 will not be quoted for the time being. The price of wet N330 is 8000 yuan/ton, wet N234 is 9600 yuan/ton, wet N326 is 8000 yuan/ton, and wet N375 is 8600 yuan/ton. The company mainly deals in high-quality wet process carbon black. It has 3 carbon black production lines with an annual production capacity of 110,000 tons.