2006.04        Hongze Dongjun Machinery Co.,Ltd. was established   

2007.04        Supplied product service for CNPc, and the products were exported to foreign countriesfor the first time

2008.07        Became the qualified supplier of CNooc, and was approved by lso 9001 Quality Management    

2011.06        Establishing the Party Branch of the Communist Party of China Hongze Dongjun Machinery Co., Ltd. and the Labor Union of Hongze Dongjun Machinery Co., Ltd    

2011.07        Obtained the right to use the monogram of American Petroleum Institute (APl)

2012.01        Obtained the Special Equipment Manufacturing License of the People's Republic of China  

2012.04        "Dongjun" trademark obtained registered trademark    

2014.06        Obtained the National High Tech Enterprise Certificate    

2019.12        Recognized by China Classification Society as "Requirements For Integrated ManagementSystem Of Informatization And Industrialization"

2020.11        Obtained the title of "Jiangsu Enterprise Technology Center"   

2021.05        Establish a holding company, Jiangsu Dongjun Energy Technology Services Co., Ltd., to carry out oil and gas engineering technology services business    

2022.08        Subsidiary "Jiangsu Dongjun Drilling & Mining Control System Co.Ltd." was established, andobtained the right to use the monogram of American Petroleum Institute APl Q1 and API 16D