On December 7th, Henan Kaijie Water Treatment Co., Ltd.'s quoted price for coal-based powder activated carbon is 4500 yuan per ton. The specifications of the coal-based powder activated carbon are: domestic, 325 mesh, Henan Kaijie Water Treatment Co., Ltd., enterprise standard new standard 700 120. The validity period of this quote is 7 days. The quote provider is Henan Kaijie Water Treatment Co., Ltd.