On 8th,SDGI Optical Fiber (Dongguan) Co., LTD opened in SDGI Optical Communication Industrial Park, Liaobu Town, Dongguan City. The project has a total investment of about 180 million yuan, with a total of 8 production lines in the first phase, with an annual output capacity of 8 million core kilometers of fiber, and an estimated annual output value of more than 200 million yuan. Six production lines are reserved for the second phase expansion plan. After the second phase expansion, the annual production capacity will reach more than 14 million core kilometers, and the annual output value will reach more than 300 million to 400 million yuan. After the completion of the project, it will further improve the layout of the self-sufficient supply chain in the cable manufacturing industry, and play an important role in promoting the expansion, strength and excellence of SDGI.