Huangshi Topwell Biotech Co., Ltd is a sister corporation of Top Loyal Chem, which is a fast growing pharm chemical supplier in HongKong. With its own R&D centre and production base, Huangshi Topwell Biotech is a professional manufacturer and exporter for pharmaceutical chemicals. Our purpose is to offer high quality products, professional services and competitive price. We are mainly in the field of pharmaceutical raw materials, cortical hormone and pharm intermediates. Over 90% of them are e...