On September 30, Henan Kaijie Water Treatment Co., Ltd. quoted a price of 6500 yuan per ton for activated carbon. The specifications of the activated carbon are: domestic, iodine value 700, Henan Kaijie Water Treatment Co., Ltd., enterprise standard, 700. The validity period of this quotation is 7 days. The provider of the quotation is Henan Kaijie Water Treatment Co., Ltd.