There are the most factories in Tangwu Village, Ma Lu Town, Jiading District. According to relevant maps, there are five factories in Tangwu Village, Ma Lu Town, Jiading District, Shanghai, namely Shanghai Yaming Lighting Co., Ltd., Gubei Instrument Factory, Shanghai Jianxin Co., Ltd., Ma Lu Zhenbaoqiao Residential Property Company and Shanghai Feng Xuan Precision Machinery Development Co., Ltd.