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About Us

Nanjing Tongchang Environment Tech Co., Ltd. was founded in 2018, located in Nanjing, JiangSu Province, which is in the Shanghai Economic Circle. Our main business is the production and sales of air and water purification equipments and their supporting accessories.

As a fast-growing high-tech enterprise, Tongchang achieves a lot of certificates audited by SGS, BV and UL. Based on a strong upstream and downstream supply chain in the area of Nanjing, equipped with international sales team and world-class production and testing facilities, Tongchang has proven to have a good reputation in the process of developing international and domestic markets. Our main Markets are in North America, South America, Europe and Asia etc.

The founding team of Tongchang comes from the University of Chinese Academy of Sciences, Sichuan University, Beijing Institute of Technology, etc. They have rich experiences in the management and development of company. The founding team has a deep grasp of air purification-related technologies and the industrial conditions, and has the profound precipitation of marketing, branding, and financing.

In the process of continuous development, Tongchang has formed two main businesses- industrial-grade air and water purification filter elements and home portable air purification equipments and their core supporting accessories.

TongChang always keeps pace with times and keeps being engaged in R&D work, and offers OEM, ODM and OBM services for clients. Our technical team is good at the filters' test methods and standards in USA and in Europe. By working with leading R&D team domestic and abroad, TongChang develops a number of the technical patents. We are rated as "high-tech enterprise" by the government in 2020.

With high quality products, good service and rich experiences, Tongchang is confident in working with clients to get competitive advantages in the various markets.

Look forward to establishing the long term cooperation with you.

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Certificate

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