On November 11, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-quality powder activated carbon is 4500 yuan/ton. The specification of the coal-quality powder activated carbon is domestic, 325 mesh, from Henan Kaijie Water Treatment Co., Ltd., with a new standard price of 700, 120. The validity period of the quotation is 7 days. The quoting entity is Henan Kaijie Water Treatment Co., Ltd.