English I Korean
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| Business area |
| Global |
| Catalog |
| Masscom |
| Recuitment |
| 2010 |  |
Attend the exhibition of SAUDI BUILD 2010 at Riyadh International Exhibition Center in Saudi Arabia as an exhibitor Attend the exhibition of Light+Building 2010 in Frankfurt, Germany as an exhibitor Rayhouse register a trademark in china |
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| 2009 | |
Global Fair & Festival 2009 Incheon, Korea Completion of Namhae Grand Bridge project European Trademark Registration |
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| 2008 | |
Attend the exhibition of Light+Building 2008 in Frankfurt, Germany as an exhibitor Renamed from SL thorn lighting to Rayhouse Co., Ltd Receive the certification of CE from TUV for its own products Internal Trademark Registration |
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| 2007 | |
Receive a certification of Inno-biz Venture from Small & Medium Business Administration, which belongs to Korean government. Enlarge its guest house and cafeteria in factory |
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| 2006 | |
Receive the certification of ISO 9001:2001 and ISO 14001:2004 | |||
| 2005 | |
Relocate its Seoul office in Yong in City Completion of Convention center project in Republic of Angola |
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| 2004 | |
Relocate its Seoul office in Yong-in City - 618-4 Pyeongchang-ri Yangji-myeon Cheoin-gu, Yongin-si Gyeonggi-do Launch its own brand named “Rayhouse” |
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| 2003 | |
Export its own products to Germany Completion of Natural Light – Louver system project for Hyundai Motor |
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| 2002 | |
Export its own products to USA Win a public contest with lighting design for Eumbong Mountain (in seoul) |
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| 2001 | |
Receive approval for establishment its own lighting institute Completion of Seoul Arts Center project |
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| 2000 | |
Sep up the its factory in Gwangju-si, Gyeonggi-do, Korea Enlarge and move its head office in Munjeong-dong, Songpa-gu, Seoul, Korea Launch its own design team for lighting product Completion of Seohae Grand Bridge project |
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| 1999 | |
Enlarge and move its head office in Yeoksam-dong, Gangnam-gu, Seoul, Korea Win a public contest with lighting design based on turn-key for Seohae Grand Bridge from the Korea Highway Corporation Completion of Hyundai Motor hedad office building Completion of Expo Bridge project |
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| 1998 | |
Establish the corporation named SL thorn lighting in World building, Yeoksam-dong, Gangnam-gu, Seoul, Korea |