China-Places.com listou aprox 18 Fábricas de produtos químicos dentro Weifang. Alguns dos mais bem avaliados Fábricas de produtos químicos dentro Weifang estão- Shandong Linqu Fuyuan Jingxi Chemical Industry Limited Company, Qingzhou Tianyuan Chemical Industry Limited Company, Shandong Gaomi Kelida Chemical Industry Limited Company, Shandong A & Fine Chemical Co. Ltd., Shandong Weifang Rainbow Chemical Co. Ltd., Gaomi Jiantao Chemical Industry Limited Company, Gao Mi Kingboard Chemical Co. Ltd., Weifang Hanting Huitao Chemical Co.Ltd., Gaotian Metal Manufacture Company Limited & Shandong Baishi Chemical Industry Company Limited.