On October 16th, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-quality tar pitch columnar activated carbon is 15,000 yuan/ton. The specifications of coal-quality tar pitch columnar activated carbon are: Kaijie φ4mm, Henan Kaijie Water Treatment Co., Ltd. GB/T7702.7-2008 1000. The validity period of this quotation is 3 days. The provider of the quotation is Henan Kaijie Water Treatment Co., Ltd.