There are several silicon factories in Longling.

There are five silicon factories in this county. Longling County is rich in silicon mineral resources, and the main mining areas are concentrated in Longshan, Zhen 'an, Longxin, Xiangda and other towns. The proven reserves are 50 million tons, with an average grade of 99.2%. It has the characteristics of good transportation conditions, open-pit mining, high grade and large reserves, in order to make the silicon industry bigger and stronger.