Shenzhen SDG Information Co. Ltd is a listed state-owned high-tech company, one of the first who set foot in developing and producing optical fiber/cable and optic-communication equipments in China, SDGI optical fiber cable branch has a modern factory covering an area of 120, 000 square meters and a full set of advanced world level manufacturing and testing equipments imported from Switzerland, Finland, America, Japan, German, Spain, Austria, which makes SDGI the largest R&D, production, testing center for optical fiber and cable in south China, with annual output capacity of 5 million fiber km.

SDGI can produce various types of high quality optical fiber cables including stranded loose tube cable, central tube optical fiber cable or fiber ribbons, slotted core fiber ribbon cable, All Dielectric Self-support cable(ADSS), Optical Fiber Composite Overhead Ground Wire (OPGW), Optical Fiber Composition Phase Conductor (OPCC), Stainless Steel tube (SST) cable, optic-electric composite cable, figure 8 self-supporting cable, color stripe identification cable and other special types of outdoor cables and all types of indoor cable.