1990. 11. Inter company Establishment (Civil Construction Production & Import and Export) 

1992. 05.  Production unit 1.Concrete Deck Finisher Model :MDF-1800 (18m) commitment to the West Coast Highway.​ 

1995.02.  Installation of production from  Master Deck Finisher  Model :MDF-1800EDR  one to laura,two. 

1996.03.   Master Deck Finisher Model : MDF-2400(24m)

1997.03.  Establishment  Inter-Heavy Industries co.,Ltd. 

1997.04.  Start Exporting  Concrete Screed 

1997.07. Development super deck finisher 

1998.03. Participate exhibition about Inter Mart Construction equipment at Paris

1998.09. Produce unit 1 Mini-Auger Drill (Delivery at Health & Environment Co.,)

1998.11. Start exporting Vibratory Rollers & Concrete Cutter to Saudi Arabia

1999.07. Completion of the second factory at ILSAN

1999.09. Start Exporting Master Deck Finisher to Overseas

1999.10. Start Exporting Power Screed and Compact to NIGERIA

1999.11. Start Exporting  Super Deck Finisher to CHINA2000

2000.03. Bridge platform, first developed in korea, input daejeon-Tongyeong Highway.

2000.03. Obtain a paten about development equipment

2000.07. Start exporting Master Deck Finisher  Model :MDF-1800EDRC to TAIWAN 

2001.01.   Start exporting Concrete Screed Model : PS-3000 II & Aluminium housing to JAPAN 

2001.10.  Completion company building at IIsan , gyeonggi-do

2001.11. FCM method Roller Screed Production & input at east coast Highway.

2002.05.  Produce Mini-Finisher

2002.09. Produce unit overhang platform and input at chungnam daksan-yesangang highways

2002.10. Obtain a paten about work platform model : AWP-301 first developed in korea. 

2003.01. Start exporting Master Deck Finisher Model :MDF-1800EDR to VIETNAM

2005.03. Participate exhibition about con expo at LAS VEGAS 

2006.07. Participate exhibition about construction equipment at JAPEN

2006.11. Participate exhibition about CHINA BAUMA CONSTRUCTION equipment at CHINA

2007.08. Worked Dae Han shipyard Dock Follring throught concrete Finisher model : MDF-2400 EDRC

2007.11. Input bridge width 56M  Deck Finisher and Two bridge width 32m. 

2008.03   Produce Mortar Milk Pump Model : MP-2000 2011

2011.12   Start exporting Power Screed Model  : PS-5000 II to SINGAPORE

2012.02.  Start exporting MODEL : MDF-2400EDRC to DUBAI

2013.04. Start exporting Mortar Pump to MONGOLIA

2013.09. Start exporting Concrete Cutter to GUAM 

2014.07.  Start exporting Overhang Platform Model : OBP-303 to PHILIPPINE

2014.10.  Start exporting Grouting Pump Model ;MP-2000 to AFRICA

2015.03. Start new Master Deck Finisher Model : MDF-2400EDR   to QATAR

2015.04.  Mortar Mixer Pump  Model:RX-301

2015.05. Start exporting Underground drilling machines to  EGYPT

2015.05. Start exporting  Grouting Mixer Pump Model : RX-302 to TAIWAN