Founded in 2013, Guangzhou Sijiu Communication Technology Co., Ltd. is a high-tech enterprise and a one-stop expert in IoT information channel solutions. To ensure the smoothness of the "last mile" of IoT information channels, Sijiu has long-term cooperation with China's three major mobile operators (China Mobile, China Unicom, China Telecom) and global operator resources from the United States, the United Kingdom, Taiwan and other regions, providing users with cost-effective and high-quality professional IoT information channel solutions.

In 2018, Sijiu and China Telecom jointly launched a tri-network compatible data package specially designed for IoT, including Sijiu data cards and DDS data distribution system. Over 3,000 customers are using Sijiu's data products, covering industries such as finance, catering, e-commerce, transportation, logistics and industry. On the basis of providing low-cost IoT information channel services, Sijiu has also integrated multiple services including management platform, promotion platform, instant messaging platform and enterprise API docking, to provide one-stop IoT information channel solutions for different user needs.