On November 13, the domestic price for activated carbon is 7500 yuan/ton. The specifications of activated carbon include a pH value between 5 and 7.5, ash content between 8 and 10%, moisture ≤ 3%, bulk density between 400 and 500, surface area > 900 M2/g, iodine absorption value > 800, and particle size of 250 mesh. The validity period for this offer is 7 days. The provider of the offer is Henan Kaijie Water Treatment Co., Ltd.