To focus on the manufacturing and management of ultra-pure germanium tetrachloride,a company named Wuhan Yunjingfei Optical Fiber Material Co.Ltd.,which specially manufacture ultra-pure germanium tetrachloride,were jointly set up by Yunnan Germanium(Stock Code:002428) and other investors in 2011 by relying on its development and manufacturing experience of germanium tetrachloride in the past five decades.Yunnan Germanium is the No. 1 germanium products manufacturer and supplier both in China and Asia.It has its own germanium mines.Wuhan Yunjingfei Optical Fiber Material Co.Ltd.,a subsidiary of Yunnan Germanium,commits itself to the development,manuf...