Ever since the establishment in 1990, Daehyun E&I has been sustaining technological development through strong collaborations with renowned companies and organizations worldwide. We thrive to grow and evolve into the best oil storage tank expertise company, focusing on and making the most out of our experience and know-how. Complying with international standardizations and certifications such as UL, ASME, API and ANSI, Daehyun E&I manufactures various quality tanks such as Double Wall Tanks, Fireguard Tanks, F921 Tanks, ConVault Tanks and ASME tanks.