On December 7th, Henan Kaijie Water Treatment Co., Ltd. provided a quote for coal-quality powder activated carbon at 3500 RMB per ton. The specifications of the coal-quality powder activated carbon are as follows: domestic product, iodine value 500, Henan Kaijie Water Treatment Co., Ltd., enterprise standard, 5006. The validity period of this quote is 7 days. The quote provider is Henan Kaijie Water Treatment Co., Ltd.