Weifang Santi Chemical Co, Ltd.(Santi Chemical for short)is one of the largest producer of water based mud chemicals, and the producer of oil base mud chemicals, and cementing products. Located near Qingdao Port, Santi has various drilling chemicals such as: Carite Bentonite, Calcium Chloride, Calcium Bromide, Lignite, CMC, PAC, Pre-gel Starch, Xanthan Gum, Polyacrylamide, Caustic Soda, Soda Ash, Zinc Carbonate, Sodium Formate, etc.