Certificate Name : ISO 9001
Reg. Office :International Certification Office
Certificate No. : Q147311
Issue Date : 2011.01.21

Certificate Name : ISO 14001
Reg. Office : International Certification Office
Certificate No. : E086211
Issue Date : 2011.02.25

Certificate Name : Advanced course for Preparation of Off-site Consequence Analysis
Certificate Organization : National Institute of Chemical Safety
Certificate Number : No. 2016-CS-272
Certificate Date : October 14, 2018

Certificate Name : Constrution Business Registration
Reg. Office : Gunpo City
Certificate No. : Gunpo 2011-10-0002
Issue Date : 2011.09.06

Certificate Name : Business Registration
Reg. Office : Anyang Tax Office
Reg. No. : 134-86-67948
Reg. Date : 2010.06.17

Certificate Name : Annexed R&D Institute
Award Office : Korea Industrial Technology
Award No. : 2010151179
Award Date : 2010.11.08

Certificate Name : Helical tubular depth Filter element
Reg. Office : Korean Intellectual Property Office
Certificate No. : 10-1299150
Issue Date : 2013.08.16

Certificate Name : Anti-Tarnishing Composition Of Pure Copper and Copper Alloy
Reg. Office : Korean Intellectual Property Office
Certificate No. : 10-1510832
Issue Date : 2015.04.03

Certificate Name : Self-vibrating Filtration device with Coil spring and Helical Filter Media
Reg. Office : Korean Intellectual Property Office
Certificate No. : 20-0481924
Issue Date : 2016.11.22