Shree Sonal Mines is based in India and lists Bentonite Drilling Grade and HDD High Grade Bentonite on Global Trade Plaza. The company lists 2014 as its year of establishment. Bentonite Drilling Grade is a naturally occurring clay containing clay minerals and may include accessory minerals such as quartz, mica, feldspar and calcite. It is produced by Shree Sonal Mines and must conform to the physical specifications of Table 8 of the International Standard when sampled from no more than one day’s production. HDD High Grade Bentonite, specifically SM 220, is a high Montmorillonite sodium bentonite produced under controlled conditions and suited for high tech drilling processes including HDD, HDB, Micro tunneling and vertical drilling applications. Buyers can send an enquiry through Global Trade Plaza.