2022 12 CERTIFICATE OF LEADING ENVIRONMENTAL COMPANY 4 CEO changed Selected to be promoted as a Korean global hidden champion 2021 12 Received Presidential Prize (award of U$7 mil export tower) Risk Assessment Certification 5 Received a citation (Gyeonggi-do governor) 3 ISO 9001 14001 45001 certified 2020 5 INNO-BIZ certified 2 Registered as a business operator for air environment construction 2019 1 Nominated as Promising Environment Enterprise in Gyeonggi-do 2017 10 Nominated as Promising SME in Gyeonggi-do 2015 10 Received a citation (Minister of Environment) 2014 7 Nominiated as Excellent Environment Enterprise 2013 12 Received a citation with U$3 mil export tower 6 Affiliated R&D Center certified; designated as Green Company 5 Received a citation (Head of Small Business Administration) 2012 10 Received a citation (Minister of Environment) 9 Moved H/Q and factory (to Gimpo) 2011 12 Received a citation (Minister of Environment) 11 Received Excellent Technology citation (Director-General of Metropolitan Air Quality Management Office); certified as Vision Enterprise 2008 11 Received a citation (Mayor of Incheon Metropolitan City) 2004 7 Received advanced technology certificate 1986 8 Company founded