On November 6th, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-based powder activated carbon is 4500 yuan/ton. The specifications of the coal-based powder activated carbon are domestic, with a mesh size of 325, produced by Henan Kaijie Water Treatment Co., Ltd., in accordance with the enterprise standards and new specifications 700, 120. The validity period of this quotation is 7 days. The provider of the quoted information is Henan Kaijie Water Treatment Co., Ltd.