The quoted price for coal-quality powder activated carbon by Henan Kaijie Water Treatment Co., Ltd. on October 23rd is RMB 7,200 per ton. The specification of the coal-quality powder activated carbon includes domestic products with an iodine value of 900 and a standard set by Henan Kaijie Water Treatment Co., Ltd., which is 900 10. The validity period for this quote is 7 days. The quoting entity is Henan Kaijie Water Treatment Co., Ltd.