Skystar Bio-Pharmaceutical, through its subsidiaries in the People's Republic of China (PRC) and Xi'an Tianxing Bio-Pharmaceutical Co., Limited (Xi'an Tianxing), is engaged in the research, development, production, marketing, and sales of veterinary healthcare and medical care products. Xi'an Tianxing and Co.'s subsidiary, Skystar Biotechnology (Jingzhou) Co., Limited primarily manufacture and distribute of veterinary drugs. Co. has four product lines: micro-organism, which includes 16 products; veterinary medicine for poultry and livestock, which includes 145 products; feed additives, which includes 16 products; and bio-pharmaceutical veterinary vaccine, which includes 10 products.