2011 -

• 2019 Produced Premium welding machine Hi Series
• 2017 Produced DIGITAL INVERTER welding machine H Series
• 2014 Produced DIGITAL INVERTER welding machine Pulse MIG welding machine production, NEO series
• 2013 Produced DIGITAL INVERTER multifunction device production
• 2012 Produced DIGITAL INVERTER PLASMA welding machine (NEO PW 300)
• 2012 Environmental test for ship rectifiers (Hi POWER 50D & 75D)
• 2011 Produced DIGITAL INVERTER automation TIG welding machine (NEO TIG 350P)
• 2011 Environmental test for ship rectifier (Hi POWER 100D)

2001 - 2010

• 2010 Manufactured DIGITAL MAG welding machine (LIBERO), conducted environmental test for ship rectifier (Hi POWER 35D)
• 2009 Produced SCR aluminum-only MIG welding machine
• 2008 Produced DIGITAL CO2/MAG 600 (FINE ARC II)
• 2007 Produced DIGITAL CO2/MAG welding machine (HD Auto + Series)
• 2001 Merged with Sungwoo Industry Co., Ltd. Hyundai welding Co., Ltd. Registered welding machine technology research center (Korea Industrial Technology Association)
• 2001 Produced DC SAW 1500(ZEUS1500) / AC SAW1500(HERA1500A)

1991 -2000

• 2000 Inverter CO2/MAG welding machine production (FINE ARC 350)
• 1999 Technical alliance with SANREX in Japan
• 1998 Started production of SCR welding machine (DYNAMIC AUTO Series)
• 1997 Sungwoo Industry Co., Ltd. Icheon Plant completed
• 1995 Established Sungwoo Precision Industry

1981 - 1990

• 1987 Changed the company name to Hyundai Welding Co., Ltd.

1975 - 1980

• 1977 Pohang welding rod factory completed
• 1975 Established Seohan Development Co., Ltd.