![](http://gaonex.com/images/content/history_logo.png)
2023
-
12
Participated in the Big 5 Global Expo in Dubai
-
05
Participated in the HVAC KOREA Expo in Republic of Korea
-
03
Participated in the ISH Expo in Frankfurt
-
02
Participated in the AHR Expo in Atlanta
![2023 image](/data/bbsData/16818869411.jpg)
2022
-
10
Participated in the HARFKO Expo in Republic of Korea
-
10
Participated in the CHILLVENTA Expo in Nuremberg, Germany
-
06
Participated in the MCE Expo in Milano, Italy
![2022 image](/data/bbsData/16813753871.jpg)
2021
-
08
Developed PCE-PEX
-
06
Office expansion and renovation
-
05
Direct production certification confirmation of filter (Medium, HEPA)
-
01
Selection of Small and Medium-sized Enterprises for Human Resources Development
![2021 image](/data/bbsData/16794654531.jpg)
2020
-
12
Selection of promising small and medium-sized enterprises in Gyeonggi-do Province
-
09
Acquired UL certifications
-
09
Developed PDH-271
-
06
Selected as Gyeonggi-do Excellent Employment Company
-
06
Recognized as a Inno-Biz
-
02
Participated in the AHR Expo in Orlando, USA
Participated in the ISH Expo in New Delhi, India
![2020 image](/data/bbsData/16794654471.jpg)
![](http://gaonex.com/images/content/history_logo.png)
2019
-
11
Selected as Next-generation world-class product
-
07
Establish a filter production line
-
05
Relocated the headquarter (Gimpo Yangchon Industrial Complex)
-
04
Participated in the CRH, ISH Expo in China
-
04
Recognized as a performance-sharing company
-
01
Participated in the U.S. Heating & Air Conditioning Expo (Atlanta)
2018
-
07
Entered into the American market
-
04
Participated in the CRH, ISH Expo in China
-
04
Recognized as a strong small company
-
01
Participated in the ASHRAE Expo in Chicago, USA
![2018 image](/data/bbsData/16794654281.jpg)
2017
-
07
Began (direct) exportation
-
05
Participated in the CRH, ISH Expo in China
-
03
Developed PDH-600 & PDH-1000
![2017 image](/data/bbsData/16818872911.jpg)
2016
-
09
Developed PDE-366 & PDH-366
-
06
Entered into the Chinese market
![2016 image](/data/bbsData/16818873071.jpg)
2015
-
12
Designated as a promising export SME
-
03
Entered into the Japanese market
![2015 image](/data/bbsData/16794654181.jpg)
![](http://gaonex.com/images/content/history_logo.png)
2014
-
10
Developed new ER-paper
-
04
Established a corporate affiliated research institute
![2014 image](/data/bbsData/16794654081.jpg)
2013
-
06
Certified as a specialized material & part company
-
04
Acquired ISO 9001 & 14001 certifications
![2013 image](/data/bbsData/16794654001.jpg)
2012
-
05
Developed PCH-PHX
-
03
Registered as a venture business
-
01
Constructed mass production
![2012 image](/data/bbsData/16794653851.jpg)
2011
-
10
Established Gaontech Co., Ltd.
![2011 image](/data/bbsData/16794653641.jpg)