On November 28, Henan Kaijie Water Treatment Co., Ltd.'s quote for coal-based powder activated carbon is 4500 yuan/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 provider of this quote is Henan Kaijie Water Treatment Co., Ltd.