On November 11th, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-grade powder activated carbon is 4800 yuan/ton. The specifications of coal-grade powder activated carbon are: domestic product, iodine value 700, Henan Kaijie Water Treatment Co., Ltd., enterprise standard, 7006. The validity period of this quotation is 7 days. The provider of the quotation is Henan Kaijie Water Treatment Co., Ltd.