On November 17, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-quality powder activated carbon is RMB 7200 per ton. The specifications of the coal-quality powder activated carbon are: domestic, iodine value 900, Henan Kaijie Water Treatment Co., Ltd., enterprise standard 900 10. The validity period of this quotation is 7 days. The provider of this quotation is Henan Kaijie Water Treatment Co., Ltd.