GRAND SUNWAY INTERNATIONAL CO., LTD. founded in 1953, is one of the largest API and formulation manufacturers in China, and it is also the appointed manufacturer for Veterinary Bulk Drugs and Feed Additives by the National Agricultural Department. After about half century�� efforts, GRAND SUNWAY has transformed itself into a large modern pharmaceutical products company which integrates research and development, production and sales of APIs, Veterinary Bulk Drugs, Chemicasl&Intermediates, Preparations and Feed Additives.