Beijing Leshi Lianchuang Technology Co., Ltd. (hereinafter referred to as Leshi Technology) was established in 2005 with a registered capital of 20.1 million yuan. It has obtained the qualification of a high-tech enterprise and cooperated to establish an ultra-low emission inspection (monitoring) technology center, undertaking major scientific research projects. The company specializes in the sales and technical services of imported portable flue gas analyzers, mobile Fourier transform infrared gas analyzers, portable VOC analyzers, H2S gas analysis systems, and other equipment, with a particular focus on application solutions for VOC monitoring and ultra-low emission detection. LeShi Technology has signed contracts with several professional instrument manufacturers, including Germany's F-disc, UK's Signal, UK's Protea, Canada's Galvanic, Austria's JCT, and Germany's Saxon, to become its general agent in China, fully responsible for the sales and technical services of its products, while maintaining good cooperative relationships with instrument manufacturers such as PerkinElmer in the United States and Nova in Canada. LeShi Technology has its own research and development center and production base, located in the western area of Daya Bay, Guangdong. It focuses on the production and research and development of VOC gas analysis instruments, which are suitable for atmospheric environment, factory air, fixed pollution sources and other application conditions. The products mainly include Fourier transform infrared spectroscopy gas analyzer, VOC leakage infrared thermal imaging instrument, portable/online non methane total hydrocarbon monitoring instrument, environmental and factory air VOCs monitoring system, environmental air benzene series and characteristic factor monitoring system, three-stage cold trap atmospheric pre concentration system, etc. The products fully comply with national standards and have high-tech level.