On May 23, Hebei market carbon black N220 tax included price: 9,000 - 9,400 yuan/ton, N330 tax included price: 7,600 - 7,800 yuan/ton;N550 tax included price: 7,800 - 8,100 yuan/ton, N660 tax included price: 7,600 - 7,800 yuan/ton; Hengshui market carbon black N220 tax included price: 8,900 - 9,300 yuan/ton, N330 tax included price: 7,500 - 7,800 yuan/ton; N550 quote including tax: 7,700 - 8,100 yuan/ton, N660 tax-inclusive quotation: 7,500 - 7,800 yuan/ton, operators are cautious in making offers, and the market is running steadily.