On October 18th, Henan Kaijie Water Treatment Co., Ltd.'s quoted price for coal-based powder activated carbon is 4800 yuan per ton. The specifications of the coal-based powder activated carbon are: domestically produced, iodine number 700, Henan Kaijie Water Treatment Co., Ltd., enterprise standard 700 6. The validity period of this quote is 7 days. The quote providing party is Henan Kaijie Water Treatment Co., Ltd.