Youtai (Hunan) Environmental Protection Technology Co., Ltd. is the authorized representative and operating agency of the American Nutech brand in China. Founded in 2001, it is a technology-based enterprise located in Changsha High tech Development Zone. It is currently engaged in system integration, application research, and product marketing of environmental monitoring and laboratory analysis instruments. Its products are mainly used in the fields of environmental air (including factory boundaries), laboratory analysis or online monitoring of volatile organic compounds (VOCs) in fixed pollution sources.

Nutech was founded in 1983 and is a leading brand of VOCs testing products in the United States and beyond. The brand headquarters is located in Dallas, Texas, USA. For decades, Nutech has been a premium brand for VOCs analysis, testing/monitoring, and related instrument manufacturing. It has three major product lines for VOC experimental analysis, portable analysis, and online monitoring, with over ten specifications and models of products. Its users are spread all over the world, and it enjoys a high reputation even in the United States.

Nutech products are distributed in dozens of countries and regions across five continents, including North America, South America, Europe, Africa, and East Asia. The National Institute of Standards and Technology (NIST), LINDE Gas Company (manufacturer of VOC standard gases for air environments), EPA Automotive Exhaust Research Center WRPS、 Nutech products can be seen in research institutions, universities, or corporate laboratories such as Harvard University, the National Institute for Environmental Monitoring in Canada, and Shell Oil in the UK.

At the beginning of the 21st century, Nutech entered China. Up to now, its users have spread across nearly 20 provinces, municipalities and autonomous regions in China, including Beijing, Shanghai, Guangdong, Jiangsu, as well as Hong Kong, Taiwan, China, China. The industry covers government environmental monitoring institutions, third-party testing, industrial enterprises, universities/research institutes, etc. The representative customers include China Academy of Environmental Sciences, * Standard Sample Institute, National Environmental Analysis and Testing Center, SMIC, Peking University, Hong Kong Government Analysis and Laboratory, Hong Kong University, Hong Kong Polytechnic University, Taiwan, China Government Environmental Laboratory, Taiwan, China Petroleum Corporation, etc.

As of now, Youtai Technology has applied for 18 patents (including 5 invention patents and 13 utility model patents) and obtained 12 software copyrights. Participated in industry landmark projects such as VOCs monitoring and assurance at the 2017 Xiamen BRICS Summit, and manual monitoring of volatile organic compounds at 13 locations on the National Photochemical Monitoring Network.