On November 6, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-based powder activated carbon is 9000 yuan/ton. The specification of the coal-based powder activated carbon includes an iodine value of 1000, with the enterprise standard at 1000, 12. This quotation is valid for 7 days. The quoting entity is Henan Kaijie Water Treatment Co., Ltd.