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2018
November 21 Recognized as an excellent company for the report of the 5th Industrial Innovation Movement in the 5th year

2017
March 28 Certificate of Excellent Technology Evaluation (Soundproofing and Fireproofing Construction 277390_1) - Nice Evaluation Information

2015
May 15 Transferring the head office 366-4 Yatap-dong Bundang-gu, Seongnam-si
June 24 Certificate of company affiliated research institute (No. 2015113236) --- Korea Industrial Technology Promotion Association
July 03 Superior procurement product designation No. 2015093 Removal, installation and maintenance Transparent sound insulation panel ---- PPS
January 12 Registered front cover design for soundproof panel No. 30-0780217 --- Patent Office

2014
Sep 01 H-Beam Replacement Method of Soundproof Wall Using a Preformed Quadruped Column Patent No. 10-1438649 --- Patent Office
October 22 "K mark" Performance Certification NO. PR12012-059 Transparent sound insulation panel ---- Korea Industrial Technology Testing Center
October 01 "K mark" Performance Certification NO. PR12014-210 Transparent sound insulation panel ---- Korea Industrial Technology Testing Center
March 07 Registered NOGIZERO trademark as Nogi Zero (No. 40-1026493)
June 05 Support with beam and soundproof wall using the same - Patent No. 10-1407024 - Patent Office
February 12 Check INNO-BIZ (No. R4061-568)

2013
January 11 Performance certification (for delivery to public institutions / reflection type removable transparent sound-absorbing plate) Article 15-956

2012
November 26 3rd Prize for Excellence in Soundproofing Facilities Competition
November 13 PIN UP design certification (2-Frame sound absorption panel with excellent maintenance function)
November 13 PIN UP design certification (M-RUBA)
March 28 Direct production confirmation certificate 2012-09804 (Soundproofing board and soundproofing wall (metal))
December 28 "Gun Mark" quality certification (2012-081 / transparent soundproofing board)

2010
September 13 Listed at the 4th Gyeonggi Provincial Public Design Competition
October 28 Superior procurement product designation No. 2010190 Transparent wooden sound insulation board
October 28 Superior procurement product designation No. 2010189 Transparent sound insulation board
November 29 Selected as "GD" Excellent Design Product (Transparent Soundproofing Board) (10FAD0084 Korea Design Promotion Agency)
November 19 Participated in the 1st Noise-Free Street Creation Competition Excellence Award
May 14 Yangji factory factory registration Yongin market
March 22 ISO 14001: 2004 / KS Q ISO 9001/2009 Certification Number: EM: 0477
March 22 ISO 9001: 2008 / KS Q ISO 9001/2009 Confirmation number: QM: 1427
August 02 "K" Mark Performance Certification NO. PR1210-127 Transparent Wooden Soundproofing Board
April 29 Acquisition of Yangji factory; 34-1, Jukburi, Yangjeong-myeon, Yongin-si
April 05 Checking MAIN BIZ (No. 100601-01542)

2009
October 15 Transferring the head office 367-4 Yatap-dong, Bundang-dong, Seongnam-si Seeshin Omni-Core 511
March 02 Registered Yongin Factory
August 09 Verified as a venture company (No. 20090106620)

2008
March 26 Approval of R & D department (No. 200854468)

2007
September 28 Mid-term Technology Confidence Development Project "Noise Interference Device Using Wind Pressure" Success
November 20 Received the citation number 1674 of the 2nd National Small Business Competition
June 25 Designated as "GD" Excellent Design Product (No. 07FAD0018)

2006
May 17 Awarded the 18th "Innovative SME Promotion" (No. 643)
December 07 2006 Venture Design Award 2006-91
December 01 Metal structure window construction construction license Seongnam 06-08-7 registration

2005
September 30 Designated as "GD" Excellent Design Product (05GD017)
September 15 Certification of "GQ" Excellent Product Mark (Article 277)
October 27 2005 "Silver Prize in Venture Design" award (548)
October 20 Recognition of "CLEAN" business place (Article 21361)
May 19 Recognition of "inventor"
July 20 Selected as "Promising Small and Medium Business" by Gyeonggi Province (2005-12)
December 29 Performance certification (for public institutions / Noise reduction sound insulation panel / Wood sound insulation panel)
December 14 Excellent procurement product certification (Noise reduction panel / Wooden soundproof panel)
August 29 Received INNO-TRCH2055 "Technical Award"
April 08 "Competition Venture" Pohang (No. 562)

2004
October 19 Sound absorption wall technical evaluation 85 points. Business performance evaluation 84 points
March 18 Registered as the factory of Seongnam 2nd Industrial Complex
March 04 Venture Company Research Institute (wp2004-1143)
June 28 Good technology company propaganda (No. 3289)
February 01 Seongnam Industrial Promotion Foundation 2nd Business Center
December 10 Received the "bronze prize" of Korea invention patent competition in 2004 (No. 6111)
August 25 Export Promising Small and Medium Enterprise (2004-66)
August 17 SA Registration of service marks

2002
October 18 Metal structure window industry license
August 12 Verification of venture business (No. 2002162131-2694)
August 12 Selected as an industrial family company (No. 03-450)

2001
September 26 Establishment of company SIE Co., Ltd.