Taban Niroo Co. was established in 1998, since then it performs various services and activities including High Voltage Power Transition Projects across Iran. In July 2002, Dena Power Line Insulators (DPL), a unit of the Taban Niroo Co, has started its activities, which mainly concentrate in producing Medium Voltage and High Voltage Composite Insulators within the range of 11kV to 750kV. Taban Niroo Co. is located at Shiraz Special Economic Zone , Shiraz, Iran.