Shengda Tech Inc. (NASDAQ:SDTH) ("Shengda Tech") is a leading nano precipitated calcium carbonate ("NPCC") manufacturer in China. In China, we are the only nano material company listed in NASDAQ of USA. We specialize in R&D, and industrialization and marketing of NPCC.With our world level Membrane Dispersion Technology (Patent No.:1769180), we manufacture high-quality NPCC(Brand name: "SHENG KE"). Shengda Tech has already acquired ISO9000 certificate and been awarded "High-tech enterprise" by government. Our R&D centers are founded in Shanghai, Beijing, Qingdao and Taian in China.