1979. 04. 25 Woojin Machinery Manufacturing founded
1987. 07. 01 Succeeded to Woojin Machinery Co. Ltd
1987. 10 Factory expanded and relocated
1990. 06. Industrial machinery department established (Steel plant)
1992. 11. 10 Selected as firm exempt from military service
1994. 12. Qualified Best medium and small scale company by Seoul Banks.
1995. 02. 03 Registered and permitted as trade business Class A
1996. 02. 12 Occupancy of new Incheon Seobu Industrial Park
1996. 08. 30 Sole investment in tianjin woojin aluminium industry, China
1996. 11. 30 Won Export 1 Million Dollar Tower Prize
1996. 11. 30 Cited and awarded by Minister of Commerce and Industry
1998. 02. 23 Selected as Export promising small and medium business
1999. 06. 23 Obtained ISO 9002 certification (Korea Qualification Co.)
12003. 04. 15 ISO 9001:2000 certification transfer (Korea Foundation of Quality)
2003. 11. 30 Won Export 5 Million Dollar Tower Prize
2004. 02. Selected as good quality solid (Posco Construction)