On November 23, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-quality powder activated carbon is 4300 yuan per ton. The specifications of the coal-quality powder activated carbon include domestic production with an iodine value of 600 and are in accordance with the enterprise standard of Henan Kaijie Water Treatment Co., Ltd. This quotation is valid for 7 days. The provider of this quote is Henan Kaijie Water Treatment Co., Ltd.