Zhengzhou Changwei IoT Technology Co., Ltd. is a wholly-owned enterprise of Hanwei Technology Group. Mainly engaged in the research and development, production, sales, and service of hardware products and software platforms related to the municipal field in the group's smart city business sector. Relying on Hanwei's leading sensor technology advantages, elite domestic and international R&D teams, and powerful IoT application platforms, Changwei IoT is committed to providing solutions in industries such as smart city, smart gas, smart water, smart heat, comprehensive pipe gallery, sponge city, etc., providing efficient and convenient management and service systems for enterprise users and municipal management departments, achieving standardization, precision, and intelligence in urban construction and management, building a complete smart city ecosystem, and improving the overall public service level of the city. Hanwei Technology Group originated in Zhongzhou, flourished in China, and integrated into the world. Riding on the natural beauty of the heavenly treasures, the land of outstanding people, and the long history of culture, with virtue as the foundation, it is renowned throughout the country. Refine the art of management, ride on the thick soil of the Yellow Emperor, uphold the majestic style of the Han Dynasty, learn from others' strengths, and open up new trends in the industry. Through years of hard work and accumulation, with the momentum of attracting great power, we have established a foothold in the Central Plains, conquered the world, and formed our own unique family. I have heard that seeking the length of a tree will solidify its roots, and seeking to flow far will dredge its source. Hanwei's approach to life, emphasizing loyalty and honesty, and maintaining good relationships with family and neighbors, is a sign of virtue and generosity. In times of prosperity, business thrives like a rainbow. Hanwei has the ambition to fight in the sky, the courage to embrace all rivers, and the willingness to explore the business world. We sincerely welcome friends from all over the world to seek common development, benefit the public, create great plans together, stand among the world's famous enterprises, and jointly realize our aspirations. Hanwei Technology Group Co., Ltd. (stock code: 300007) is a trustworthy innovative technology company, a well-known domestic manufacturer of gas sensors and instruments, a provider of IoT solutions, and one of the first listed companies on the ChiNext board. It is committed to empowering all things and bringing new value to production and life. Hanwei focuses on the Internet of Things industry, closely integrating sensing sensors, intelligent terminals, communication technology, geographic information and cloud computing, big data and other technologies, creating Hanwei Cloud, establishing a complete Internet of Things industry chain, combining environmental governance and energy-saving technology, guided by customer value, providing comprehensive solutions for smart cities, safety production, environmental protection, and people's health.