Hanwei Electronics Group Corporation (Stock no.:300007) founded in 1998,is a trustworthy innovative technology company, and the largest gas sensors and instruments manufacturer, IoT solution supplier in China, listed on China’s Growth Enterprise Board in the first batch, devote ourselves to make things intelligent, creating new values to our work and life unceasingly.Around IoT industry, Hanwei combined sensors, intelligent terminal, communication technology, geographic information and cloud computing, big data technology together closely, created Hanwei Cloud, established a complete IoT technology platform and industrial ecology, integrated environmental protection and energy-saving technology. Hanwei Electronics Group focus on the customer value oriented, provide perfect solutions for smart city, production safety, environmental protection, health of the people's livelihood.