Maoming Yunlong Industrial Development Co., Ltd. is located in a beautiful coast of China sea. We enjoy a very convenient transportation as our company is 20 kilometers away from Shuidong port and 30 kilometers away from the Maoming Train Station.
Founded in January 2000, Yunlong is an integrated private company engaging in R&D and fine chemicals production.
Meanwhile, we work with Zhejiang University and South China University of Technology to update and improve our product development capabilities and now we have built our Epoxy derivatives chemical engineering development center.
We own the following production plants:
1. TDG Plant: The best quality and the biggest production capacity of manufacturing and processing equipment for Thiodiglycol in China;
2. MDEA plant: We invented the first equipment in China for continuous production of N-methylethanolamine and N-methyldiethanolamine, which has abtained 8 invention patents and 17 utility patents.
3. Polyether plant.

Our main products include Thiodiglycol, N-methylethanolamine, N-methyl diethanolamine, Diethanolisopropanolamine, Electroplating Additives,Lugalvan BNO, Lugalvan HS 1000 etc.
Our customers expand world-wild: P&G, DuPont Performance Coatings, PPG Coatings, Nippon Paint, Atotech (China) Chemicals LTD. Etc.
Yunlong has been an ISO certified company since 2009. And we have got the Production Special Permit for the Monitored and Controlled Chemicals Schedule II Thiodiglycol and Schedule III N-methyldiethanolamine issued by MIIT (Ministry of Industry and Information Technology of the People`s Republic China). In recent years, we are honored as "National hi-tech company" and "Top 50 Private Companies of Maoming City".
After years of continuous growth, we have become the most competitive company of Ethylene Oxide and Propylene Oxide production. We have set up 2 Independent subsidiaries in 2014 and 2023 which are Guangdong LongHui Chemical & Industry Co., Ltd. And Guangdong LongPai New Materials Co., Ltd.
Looking forward, Yunlong is dedicated to grow as a stronger and better industry. We sincerely looking forward to cooperating with customers domestic and abroad to create win-win business.