2011 ~ Present
                            
                                Awarded $5Million export tower on 51st Trade Day,
                                
                                Awarded model taxpayer
                            
                         
                        
                            
                            
                                2023
                                
                                    - 01
 
                                    - Awarded model taxpayer - Gongju-city
 
                                
                             
                         
                        
                            
                            
                                2022
                                
                                    - 01
 
                                    - Awarded model taxpayer - Gongju-city
 
                                
                             
                         
                        
                            
                            
                                2021
                                
                                    - 01
 
                                    - Awarded model taxpayer - Gongju-city
 
                                
                             
                         
                        
                            
                            
                                2020
                                
                                    - 03
 
                                    - Awarded chief taxpayer (Gongju-city)
 
                                
                                
                                    - 01
 
                                    - Awarded model taxpayer (Gongju-city)
 
                                
                             
                         
                        
                            
                            
                                2018
                                
                                    - 00
 
                                    - Delivery insulated aerial platform to Korea Electric Power Corporation
 
                                
                                
                                    - 08
 
                                    - Merger with Donghae Heavy Industries Co., Ltd.
 
                                
                                
                                    - 05
 
                                    - Acquisition of shares by JKL
 
                                
                             
                         
                        
                            
                            
                                2017
                                
                                    - 12
 
                                    - Designation of The Small-strong company 2017
 
                                
                                
                                    - 12
 
                                    - Awarded model taxpayer (Gongju-city)
 
                                
                             
                         
                        
                            
                            
                                2016
                                
                                    - 00
 
                                    - New construction of Jeonbuk branch
 
                                
                                
                                    - 11
 
                                    - Awarded model taxpayer (Ministry of Strategy and Finance)
 
                                
                                
                                    - 00
 
                                    - Designation of construction machinery production and assembler (Ministry of Land, Infrastructure and Transport)
 
                                
                             
                         
                        
                            
                            
                                2015
                                
                                    - 03
 
                                    - Awarded model taxpayer(Governor of South ChungNam Province)
 
                                
                                
                                    - 00
 
                                    - Expansion of Seoul-Gyeonggi branch
 
                                
                                
                                    - 00
 
                                    - Expansion of head office R&D center
 
                                
                             
                         
                        
                            
                            
                                2014
                                
                                    - 07
 
                                    - Awarded $5Million export tower on 51st Trade Day
 
                                
                                
                                    - 00
 
                                    - Designation of the good company to work (Small and Medium Business Corporation)
 
                                
                                
                                    - 00
 
                                    - Awarded presidential commendation for small and medium-sized business convergence activation
 
                                
                             
                         
                        
                            
                            
                                2013
                                
                                    - 00
 
                                    - New construction of Ulsan-Gyeongbuk branch
 
                                
                             
                         
                        
                            
                            
                                2012
                                
                                    - 00
 
                                    - Delivery insulated aerial platform and lower-voltage platform to Korea Electric Power Corporation
 
                                
                                
                                    - 11
 
                                    - Awarded the Minister of Health and Welfare
 
                                
                             
                         
                        
                            
                            
                                2011
                                
                                    - 00
 
                                    - Awarded grand prize at the Chungnam Entrepreneur Competition
 
                                
                                
                                    - 12
 
                                    - Establishment of Donghae Flight School
 
                                
                                
                                    - 00
 
                                    - Designation of specialized training institution for aviation workers by the Ministry of Land, Transport and Maritime Affairs (light aircraft-rotorcraft)
 
                                
                                
                                    - 00
 
                                    - New construction of Busan-Gyeongnam branch
 
                                
                                
                                    - 00
 
                                    - New construction of Seoul-Gyeonggi branch
 
                                
                                
                                    - 03
 
                                    - Awarded model taxpayer(Prime Minister)
 
                                
                             
                         
                     
                    
                    
                        
                            2001 ~ 2010
                            Awarded $1Million export tower 
                         
                        
                            
                            
                                2010
                                
                                    - 00
 
                                    - New construction of Jeju branch
 
                                
                                
                                    - 00
 
                                    - New construction of Southern Gyeongnam branch
 
                                
                             
                         
                        
                            
                            
                                2009
                                
                                    - 00
 
                                    - Awarded the Proud Chungnam Citizen
 
                                
                                
                                    - 00
 
                                    - New construction of Large type assembly line in 1st factory
 
                                
                             
                         
                        
                            
                            
                                2008
                                
                                    - 00
 
                                    - Expansion (Canning line) of 1st factory
 
                                
                                
                                    - 00
 
                                    - New construction of 3rd factory in Ok-cheon city, Chungbuk
 
                                
                             
                         
                        
                            
                            
                                2007
                                
                                    - 12
 
                                    - Awarded $1Million export tower 
 
                                
                                
                                    - 00
 
                                    - Invest agreement for aircraft inspection center with with Korea Transportation Safety Authority
 
                                
                                
                                    - 00
 
                                    - Expansion Yugu factory (Large assembly line and painting booth)
 
                                
                             
                         
                        
                            
                            
                                2006
                                
                                    - 00
 
                                    - New construction of central office (Cheongwon city, Chungbuk)
 
                                
                                
                                    - 00
 
                                    - Delivery aerial work platform to China North-east Electric Power Bureau
 
                                
                                
                                    - 12
 
                                    - Acquisition CCC certificate of China
 
                                
                                
                                    - 00
 
                                    - Acquisition NEP certificate of Inert Gas Injection Fire Suppressor
 
                                
                             
                         
                        
                            
                            
                                2005
                                
                                    - 00
 
                                    - Recognition of research cluster member institutions(Korea Industrial Technology Promotion Association)
 
                                
                                
                                    - 00
 
                                    - Designation of Korean electric power venture company
 
                                
                             
                         
                        
                            
                            
                                2004
                                
                                    - 00
 
                                    - Awarded for new technology development (Ministry of Commerce, Industry and Energy)
 
                                
                                
                                    - 00
 
                                    - Designation of Export enterprise structure advancement company (Chungnam)
 
                                
                                
                                    - 00
 
                                    - Recognition of specialized company for parts and materials (Ministry of Commerce, Industry and Energy)
 
                                
                             
                         
                        
                            
                            
                                2003
                                
                                    - 00
 
                                    - Registration of Vehicle manufacturer
 
                                
                                
                                    - 00
 
                                    - Registration of vehicle management business
 
                                
                             
                         
                        
                            
                            
                                2002
                                
                                    - 12
 
                                    - Acquisition ISO9001/14001
 
                                
                                
                                    - 00
 
                                    - Acquisition Company-affiliated technology research institute
 
                                
                                
                                    - 09
 
                                    - Completed light helicopter(DAMBI) and test flight
 
                                
                             
                         
                        
                            
                            
                                2001
                                
                                    - 00
 
                                    - Designation Technologically innovative small and medium-sized businesses(INNO-BIZ) 
 
                                
                                
                                    - 11
 
                                    - New construction of airstrip and aircraft assembly line for light-helicopter
 
                                
                             
                         
                     
                    
                    
                        
                            1981 ~ 2000
                            Launched Donghae Machinery Aviation Co., Ltd.
                         
                        
                            
                            
                                2000
                                
                                    - 06
 
                                    - Merged Donghae Machinery Co., Ltd. / Donghae Aviation Co., Ltd. - Launched Donghae Machinery Aviation Co., Ltd.
 
                                
                             
                         
                        
                            
                            
                                1999
                                
                                    - 00
 
                                    - New construction of Daegu-Gyeonbuk branch
 
                                
                                
                                    - 00
 
                                    - New construction of Seoul-Gyeonggi branch
 
                                
                                
                                    - 00
 
                                    - Developed and delivery “communication line modernization integrated equipment” to KT
 
                                
                                
                                    - 00
 
                                    - Registration of wireless device type (Korea Radio Research Institute)
 
                                
                                
                                    - 00
 
                                    - Designation Leading company in Chungnam
 
                                
                                
                                    - 00
 
                                    - Acquisition the Venture company 
 
                                
                             
                         
                        
                            
                            
                                1998
                                
                                    - 00
 
                                    - Awarded The Chungnam Excellent Entrepreneur
 
                                
                                
                                    - 00
 
                                    - Registration of international trade business and overseas branch
 
                                
                             
                         
                        
                            
                            
                                1997
                                
                                    - 06
 
                                    - Established Donghae Aviation Co., Ltd. And construction Sinpoong factory
 
                                
                             
                         
                        
                            
                            
                                1995
                                
                                    - 00
 
                                    - Awarded the New Korean President’s Award
 
                                
                                
                                    - 00
 
                                    - Investment in kind and Conversion to corporation as Donghae Machinery Co., Ltd 
 
                                
                             
                         
                        
                            
                            
                                1994
                                
                                    - 06
 
                                    - Conversion to corporation as Donghae Machinery Co., Ltd
 
                                
                             
                         
                        
                            
                            
                                1993
                                
                                    - 00
 
                                    - Awarded the Proud New Korean Award (Governor of Chungnam Province)
 
                                
                             
                         
                        
                            
                            
                                1992
                                
                                    - 12
 
                                    - Launched small hydraulic crane(DH800 series)
 
                                
                             
                         
                        
                            
                            
                                1987
                                
                                    - 00
 
                                    - Launched repair lift for motorcycle(LT-100)
 
                                
                                
                                    - 00
 
                                    - Launched hydraulic lift
 
                                
                                
                                    - 00
 
                                    - New construction Yugu factory
 
                                
                                
                                    - 07
 
                                    - Changed name to Donghae Machinery Co., Ltd
 
                                
                             
                         
                        
                            
                            
                                1981
                                
                                    - 04
 
                                    - Donghae Industrial Company