July 6, Hebei market carbon black N220 tax included price: 9,600 - 10,000 yuan/ton, N330 tax included price: 8,200 - 8,400 yuan/ton;N550 tax included price: 8,400 - 8,700 yuan/ton, N660 tax included price: 8,200 - 8,400 yuan/ton; Hengshui market carbon black N220 tax included price: 9,500 - 9,900 yuan/ton, N330 tax included price: 8,100 - 8,400 yuan/ton; N550 quote including tax: 8,300 - 8,700 yuan/ton, N660 tax-inclusive quote: 8,100 - 8,400 yuan/ton, negative dominates, and carbon black trading is deserted.