On November 23rd, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-grade powder activated carbon is 5500 yuan/ton. The specifications of the coal-grade powder activated carbon are: domestic, iodine value 800, Henan Kaijie Water Treatment Co., Ltd., enterprise standard, 800, 8. This quotation is valid for 7 days. The provider of the quotation is Henan Kaijie Water Treatment Co., Ltd.