On November 9th, Henan Kaijie Water Treatment Co., Ltd.'s quoted price for coal tar pitch columnar activated carbon is 15,000 yuan per ton. The specifications of coal tar pitch columnar activated carbon are as follows: Kaijie φ4mm, Henan Kaijie Water Treatment Co., Ltd., GB/T7702.7-2008, 1000. The validity period of this quote is 3 days. The quote provider is Henan Kaijie Water Treatment Co., Ltd.