On October 21, the domestic price for white carbon black was quoted at 5,500 yuan per ton. The specifications of white carbon black include: usage level: rubber-grade; production process: precipitation method; SiO2 content: ≥90%; pH value: 5.0-8.0; specific surface area m²/g: 161-190; the validity period for this quote is 3 days. The provider of this quote is Jinri Heavy Industry Co., Ltd.