Potato tapioca a dn corn starch,Proppant,sized salt and graded salt,modifed starch,pregelitinsed and oil drilling starch,potassium chloride,poly amine,lime stone and calcium carbonate,Mica flakes and powder,walnut shell,Poly anionic cellulose and carboxy methly cellulos,carboxy methyl starch,HEC and HES,bentionite,barytes,chrome free lignosulphonate,Polyol,choline chloride,PHPA,oil drilling chemcials