The domestic price for activated carbon on December 11th is 5500 yuan per ton. The specifications of activated carbon are: pH value between 5 and 7.5, ash content between 8 and 10%, moisture less than 3%, bulk density between 400 and 500, specific surface area greater than 900 M2/g, iodine absorption value greater than 800, particle size 250 mesh. The validity period of the quoted price is 3 days. The quoted provider is Henan Shunzhibang Environmental Protection Technology Co., Ltd.