Tongding Interconnection Information Co., Ltd.

Tongding Interconnection Information Co., Ltd. (TDII) is a national private enterprise listed on the Shenzhen Stock Exchange since October 2010. The company specializes in the research and development, production, and sales of optical preform, fiber and cable, various types of communication cables, communication devices, and network security equipment and services. TDII aims to enhance its industrial transformation and upgrade by extending its operations along the data chain, focusing on broadband access and communication equipment. TDII's primary business lines include traditional optical fiber and cable manufacturing, where it holds a competitive position with a complete industry chain and significant production capacity. The company has established itself as a key supplier for major telecom operators in China, such as China Mobile, China Telecom, and China Unicom. Additionally, TDII is expanding into communications devices and network security, offering a range of products including SDN exchangers and backbone network security systems. The company emphasizes technological innovation and has developed numerous partnerships and research centers to strengthen its capabilities in these strategic areas.

Optical preform, fiber and cable is traditional competitive industry of TDII, we have abundant technology advantages in developing and producing in this area. Moreover, we have complete industry chain, and the optical fiber and cable capacity is in the first camp of this area. Depending on reliable quality and excellent service of pre-sale, in-sale and after-sale, we have become important supplier and partner for China Mobile, China Telecom and China Unicom. Meanwhile, we have got network access license of railway companies, broadcasting authority and national power telecom communication center. TDII products cover throughout all provinces, cities, municipalities of Mainland China and overseas. Communications devices and network security are new strategic business of TDII In the field of communications devices, based on strong hardware design and system development capabilities, TDII provides a variety of communication devices products for the Telecom operators and industry customers, such as SDN Exchanger, SDN Intelligent Gateway, all kinds of wireless products, storage device, servers, ODN devices, etc. In the field of network security, TDII has a leading researching and service team, which can provide network security products and solutions such as backbone network security systems, security situation awareness system, WiFi & electronic fences, temporary reconnaissance equipment and various types of network security services for telecom operators, public security and national security and other government departments.