Founded in 1999, GrenTech is a high-tech enterprise specializing in the R&D and production of wireless communication systems，RF products and optical transceiver products . GT ranked 15th on "China Top 50 Communication Equipment Manufacturers”. As one of the leading companies in China communication industry ，GT listed in Nasdaq in 2006, we have been serving domestic operators and global equipment vendors (ZTE,Ericsson , Nokia etc.) over decades through endeavor of 5000+ staffs . GrenTech RF has a prominent position in the global communication industry, and it is the biggest wireless, RF, optical ,transcerive supplier of three out of the four big communication equipment manufacturers in the world, namely Ericsson, ZTE and Nokia. In 2018, it won the world’s only excellent supplier award from Ericsson by standing out from 10,000 suppliers of Ericsson in the world. In 2017, it won the global supplier quality award from Nokia by ranking the first in the quality appraisal of 14,000 suppliers of Nokia in the world. It has successively won the best global partner award from ZTE for consecutive years. GrenTech firmly follows independent innovation, making remarkable achievements in the core technology and making itself a global leading developer. GrenTech strives to contribute values to its customers with technical innovation, continuously increases R&D investment, cultivates the largest R&D team of RF technology in China and establishes a long-term and stable strategic partnership with Ericsson, ZTE, Nokia and other customers in the iterative development from 3G, 4G to 5G with its leading technology and excellent product development capability.