On August 21, the price of Shandong Aolong carbon black remained stable. The price of wet N330 was 7800 yuan/ton, wet N234 was 9200 yuan/ton, wet N326 was 7800 yuan/ton, and wet N375 was 8600 yuan/ton; No quotation is provided for wet N220. The company mainly operates high-quality wet-process carbon black N220, N234, N330, N326, N375, N550, N660, and 3 existing carbon black production lines, with an annual production capacity of 110,000 tons.