In terms of revenue contribution rate, the revenue of optical network unit (ONU/ONT) products from 2019 to 2021 accounted for 73.10%, 76.68%, and 71.75% respectively, and over 70% of the revenue came from this business.In 2021, ONU/ONT will achieve a revenue of 552 million, a year-on-year increase of 33.76%, and a total of 6.0606 million sets have been sold.However, at present, Xinde Technology has mastered VoIP technology, routing switching technology, VSOL embedded application platform technology, xPON core control and management technology, cloud management technology of PON equipment, cross-product platform WiFi Mesh technology, encryption protection algorithm and authorization management technology , ONU/ONT automatic configuration management technology, OLT edge computing technology and other 9 core technologies.It has also achieved a major breakthrough in the alternative solution of its own domestic chip brand (ZTE Micro), reducing the dependence of ONU/ONT and OLT solutions on Realtek and Broadcom's overseas chips.Among the top five customers in 2021, GO IP Global Services Private Limited and NETLINK ICT PRIVATE LIMITED are all from India, FLYTEC COMPUTERS SA is from Paraguay, and WIRELESS TIGRE SA is from Argentina.In addition to expanding the production capacity of existing products, the future research and development of Xinde Technology will turn to F5G and a new generation of optical fiber communication systems, industrial PON application systems, industrial IoT gateways, industrial IoT application intelligent cloud management platforms, WIFI 6E and WIFI 7 technology and Access the product.At the same time, a large number of professional R&D talents are recruited. In 2022, Xinde Technology has repeatedly released information on the high-paying recruitment of R&D/quality engineer positions on the official micro-platform.In the future, if the IPO is successful, the funds raised to 363 million will greatly expand the production capacity of ONU/ONT and OLT. After the mass production of new products in the field of industrial Internet of Things and 5G communications, it is expected to promote the overall increase in the overseas market share of Xinde Technology and occupy a more favorable position.