OBM Viscosifier to import Bulgaria

I would like kindly to ask you for information about a product I am researching for my client. The product required is "OBM-Viscosifier" - a special premium bentonite and chemical treated with cationic quaternary amine. The product is easily dispersed in oil to increase the carrying capacity and hole cleaning ability. OBM-Viscosifier emulsion drilling fluids can suspend about 200 gms barite, and also aids stability of emulsion and filtration control. The amount needed is about 70,000 liters per month for a period of 1 year.