On August 22, the price of Shandong Yinbao carbon black was stable. The price of N220 was 9200 yuan/ton, the price of N330 was 7800 yuan/ton, the price of N234 was 9400 yuan/ton, the price of N326 was 8000 yuan/ton, the price of N375 was 8800 yuan/ton, and the price of N660 was 7800 yuan/ton. The company has 4 wet granulation production lines with an annual production capacity of 90,000 tons. Its products mainly include 12 varieties of carbon black for rubber such as N220, N330, N550, and N660.