This is nancy from Bytru International, We are the major supplier of high purity quartz sand from Tongshan, Hubei, Province. The quartz developed here displays three levels of purity in excess of 99% Sio2, with the highest grade defined as HPQ at more than 99.98% Sio2 purity. End-markets targeted by Shengshi include sodium silicate, paint, solar glass, optical glass, mobile screen, semiconductor filter and liquid crystal display(LCD) glass.