| 2012 ~ 2000 | Oct. 2012 | Section of processing in Dooha, production facilities relocate an place of business in Jincheon. |
Nov. 2010 |
Obtained Innobiz certification (Deco division) |
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| Sep. 2010 | Place of business in Jincheon registration of business (section of sheet) |
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| Jan. 2010 | Institute of Dooha R&D establish permission. Calendar facilities Installation(place of business in jincheon) |
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| Nov. 2008 | Obtained the ISO 14001 certification | |
Jul. 2005 |
Promising small business of Incheon City selected |
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| Oct. 2004 | Relocated the Gojan-dong extension in Nonhyeon-dong office |
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| Jul. 2003 | Obtained the ISO 9001 certification | |
| Jun. 2001 | Capital increased to 3 billion won | |
| Apr. 2001 | Change the company name as Dooha co. Ltd | |
| Jul. 2000 | Quality a competitive, chosen as In the top 50 excellent company. |
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| Feb. 2000 | Occupational capacity development training excellent business(Human Resources Development Service of Korea) |
| 1999 ~ 1991 | Nom. 1999 |
Excellent enterpriser award prize. |
Jan. 1999 |
Promising small business of export, selected |
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| Jan. 1998 | Moved the main office to 672-8, Gojan-dong, Namdong-gu, Incheon city |
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| May. 1997 | Owned factory purchase Heesung Steel Industry Co. | |
Aug. 1996 |
Established the branch office Issued the Business |
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Jun. 1994 |
Branch establishment(269-9, Nonhyeon-dong,Namdong-gu,Incheon City) |
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| Mar. 1994 | Deco plastic sheet factories are build additional completion. | |
| Aug. 1991 | The Busan factory moved in Nonhyeon-dong,Namdong-gu Incheon City. |
| 1989 ~ 1984 | Mar. 1986 | A new Busan factory establishment , add PVC sheets |
Apr. 1984 |
Dooha trading firm corporation establish |
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