Hi, erveryone, please let me introduce our company in brief, our company' s name is Shijiazhuang Shangdun Cellulose Co., Ltd which produce HPMC, CMC, HEC, RDP, it is located in Hebei Province. Our products could be used in construction material, like skim coat, wall putty, cement mortar. Please feel free to contact us if you have any questions, thanks.