DONZHI Technology has a dynamic, innovative and competitive R&D team. With years of accumulated technological advantages and rich experience, DONZHI R&D team completed the development of ADSL, ADSL2+, VDSL and ADSL central office splitter with remote self-test function. In 2006 DONZHI was approved by Chinese Ministry of Information Industry and obtained "Permit of Telecommunication Equipments Entering into the Public Telecommunication Networks" issued by the Ministry of Information Industry. Also company passed the CCC, CE certification and ISO9001 Quality Management System Certification, ISO14001 Environment Management System, OHSAS18001 Occupational Health and Safety System Certification. Besides DONZHI was awarded the "Shenzhen High-Tech Enterprise", "Shenzhen Top 40 of 500 growth of SMEs".