China-Places.com listou aprox 19 Companhias farmaceuticas dentro Haikou. Alguns dos mais bem avaliados Companhias farmaceuticas dentro Haikou estão- Pioneer Medical Company Company Limited, Huiyinbi Group Hainan Pharmaceutical Co.Ltd., Hainan Huanglong Pharmaceutical Factory Limited Company, Hainan Zhongbao Pharmacy Company Limited, Hainan Zhongbao Pharmacy Company Limited, Hainan Zhonghe Pharmaceutical Co. Ltd., Hainan Sanye Pharmaceutical Industry Group Company Ltd., Hainan Boda Pharmaceutical Industry Limited Company, Hainan General Motors Sanyang Pharmaceutical Industry Limited Company & Guang'an Tangyaopin Supermarket Chain Marketing Limited Company.