· Nov.1970 Sangjin Development Co.,Ltd was incorporated ChungKu, Seoul
      · Feb.1971 Acquired electricity / utility construction license
      · Jul. 1976 Erected boilers and auxiliary equipment for thermal power station units NO.5,6 and 7 at Doha, Kuwait
      · Oct.1979 Equipped with grating manufacturing facility(NO.1auto projection welding machine)
      · Feb.1981 Launched participating steel fabrication and erection works in overseas construction projects(Bahrain)
      · Jun.1984 Acquired import and export license from Seoul Metropolitan City
      · Jan.1986 Exported grating to Japan
      · Jun.1986 Built a new factory at Ansan Industrial Estate and extended with NO.2 auto projection welding machine
      · Apr.1988 Opened Seoul trade office in Changkyo building,Seoul
      · Jun.1988 Exported auto projection grating welding machine to Thailand
      · Jun.1988 Extension with NO.1galvanizing plant
      · Aug.1988 Extension with NO.3 auto projection welding machines
      · Feb.1989 Extension with NO.4 auto projection welding machine(feeding 2 cross bars simultaneously)
      · Apr.1989 Extension with NO.2 galvanizing plant
      · Dec.1990 Extension with NO.3 galvanizing plant
      · Sept.1991 Extension with NO.5 auto projection welding machine(feeding 2 cross bars simultaneously)
      · Nov.1991 Bulit a 2nd factory at Ansan Industrial Estate
      · Jan.1994 Exported Sangjin's auto projection grating welding machine to Beijing,China
      · Mar.1994 extension with 6 lines of end bar auto welding machines
      · Jun.1995 extension with 2 lines of end bar auto welding machines
      · Jun.1995 Exported SANJIN's auto projection grating welding machine to Malaysia
      · Aug.1995 Extension with NO.6,7 and 8 auto projection welding machines
      · Nov.1996 Sangwon Co.,Ltd. a subsidiary of Sangjin,commenced its hot rolling mill operation producing steel bars
      · Aug.2000 Sangjin tech and research Co.,Ltd a subsidiary of Sangjin,commenced its business producing noise barrier and guard rail
      · Dec.2001 NO.1 galvanizing plant is renovated to use LNG.
      · Jun.2002 NO.3 galvanizing plant is renovated to use LNG.
      · Dec.2002 NO.2 galvanizing plant is renovated to use LNG.
      · Oct.2002 Opened SDI qingdao Co.,LTD,China

ADD:
NO.298 Tonghe Road Qingdao Economy&Technology Development Zone,China
TEL:
86-532-691-1291 691-1292 691-1293 691-1295
FAX:
86-532-691-1290 691-1294
E-mail:
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