China-Places.com listou aprox 19 Companhias farmaceuticas dentro Haikou. Alguns dos mais bem avaliados Companhias farmaceuticas dentro Haikou estão- Hainan General Motors Tongmeng Pharmaceutical Industry Limited Company, Hainan Zanbang Pharmacy Company Limited, Hainan Zanbang Pharmacy Company Limited, Huiyinbi Group Hainan Pharmaceutical Co.Ltd., Hainan General Kangli Pharmaceutical Company, Hainan Chang'an International Pharmacy Limited Company, Qilu Pharmaceutical, Haikou Kangli Yuan Pharmacy Limited Company & Hainan Hexin Pharmaceutical Industry Limited Company.