July 17, Hebei market carbon black N220 tax included price: 9,300 - 9,700 yuan/ton, N330 tax included price: 7,900 - 8,100 yuan/ton;N550 tax included price: 8,100 - 8,400 yuan/ton, N660 tax included price: 7,900 -8100 yuan/ton; Hengshui market carbon black N220 tax included price: 9,200 - 9,600 yuan/ton, N330 tax included price: 7,800 - 8,100 yuan/ton; N550 quote including tax: 8,000 - 8,400 yuan/ton, N660 tax included price: 7,800 - 8,100 yuan/ton, market news was scarce at the beginning of the week, and trading was flat.