1986.10 KJ INDUSTRY CO.,LTD. established.
1994.04 Change company name into DAENONG HEAVY INDUSTRY CO.,LTD.
1995.10 All breaker series acquire CE mark
1995.12 Conclusion of a hydraulic drilling machine technology transfer contract from TAISEI corp. Japan.
1996.07 Conclusion of a Pumpcar Boom technology transfer contract from ANTONELLI corp. Italy.
1996.09 ISO 9001 certification acqusition.
1997.05 New factory completion in southern-east of Incheon.
2000.11 100 Million Export Tower Award
2001.03 Hydraulic drill DNCD 3000EX CE mark acqusition.
2001.11 1000 Million Export Tower Award
2006. 12 Frist export to Central Asia(first batch total amount $1,400,000)
2006 DNHI was established taking over the breaker division of DAENONG CO.,LTD. with their 12 kinds of model along with know-how.
2007 Conclusion of a trademark rights contract with DAENONG CO.,LTD.
2008 CEO, Jin Gab Sun, changed company name into DNHI CO.,LTD.
Second version of breakers which is 'DXXlls' series developed.
2009 Hydraulic breaker CE Mark acquisition.
Top export tower award(1 million dollars)
ISO 9001, 14001 quality and environmental management system certification.
2010 DNHI has been chosen as one of the most promising exporting companies.
2012 Female company award.
Gained trademark rights of DNB which stands for Dae Nong Breakers.
Other attachments obtained CE marks.
2013 D300lls model developed for 80 ton excavators.
2014 DNB Trademarks registered in more than 20 Countries.
D500lls model was developed for 140 ton excavators. It's the biggest hydraulic breaker exist.
2015 3 patents were registered.
2017 DNHI embraced Dae Jong coporation, as our subsidiary company to keep up with international trends.
2018 New factory completion in industrial complex in GINCHEON and ready to take a big step forward.