Twentyone Co. Ltd, established in 1998, is trying our best to become the top company that pursues customer’s success through continuous research and development of new technologies. Our HQ is located in Yangsan, Gyeongnam, and factor in Busan Jangan, and we manufacture and produce PVC and CPVC adhesives, silicon-caulking gun, hera, nozzle, cap, etc. We are in alliance with PVC valve manufacturing companies in Taiwan, China, and Korea for circulation sales of various industrial use valves and agriculture and fisheries use valves.
Since the establishment, Twentyone Co. Ltd has created a new faith with constant challenges. We contribute greatly to deduct construction costs by preventing silicon waste by developing silicon gun where the remainder doesn’t leak out and specially designed nozzle, and to create clean working environment as well.We are building the trustworthy quality guarantee system with various certificates and patents verified through systematic quality innovation and improvement activities. With these technologies, we are pushing forward to become global company with innovative competitiveness as we supply goods to Korea’s leading companies.
Twentyone Co. Ltd is actively striving for 0% of defectives with progressive thorough quality management system by constructing production sales system of 3 steps: purchasing raw materials – production of goods – distribution of goods. We also provide goods that guarantee safety from environmentally harmful materials and quality by testing functions and whether it contains harmful materials or not periodically through government organization.


Other than that, we installed technology development institute to pursue not only functional improvement of products through active R&D activities, but also providence of necessary products.