On November 24, Henan Kaijie Water Treatment Co., Ltd.'s quotation for coal-quality powder activated carbon is 2400 yuan per ton. The specifications of coal-quality powder activated carbon are: domestic, iodine value 300, Henan Kaijie Water Treatment Co., Ltd., corporate standard, 300 4. The validity period of this quotation is 7 days. The quoting party is Henan Kaijie Water Treatment Co., Ltd.