The registration address of hubei yonggwan technology limited is in the third group of the western temple village of the huanggang industrial park in tianmen city, hubei province. The registration authority is the market supervision authority of tianmen city, represented by a legal person, liu wenqing, who operates in the areas of research and development of pharmaceutical raw materials technology, chemical tailor-made synthesis and technical advisory services; the sale of pharmaceutical raw materials, medical intermediates, chemical raw materials (except for dangerous chemicals); biotechnology, pharmaceutical chemical works, fine chemicals (except dangerous chemicals), biological products, and chemical reagents. (the above operations do not involve hazardous chemicals, flammable explosive substances, toxic and hazardous substances, substances; they involve licensed projects that require permission from the relevant department to operate ****