On December 6th, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-based powder activated carbon is 4300 yuan per ton. The specification of the coal-based powder activated carbon includes domestic products with an iodine value of 600 and a standard set by Henan Kaijie Water Treatment Co., Ltd., which is 600 6. The validity period of this quotation is 7 days. The quote is provided by Henan Kaijie Water Treatment Co., Ltd.