TradeVerify1992. 7. 20 Founding AhJin construction(Seoul Gwanak-gu Sindorim-dong)2007. 11 Delivery the patented waterproof sheets for Talratona Convention Hotel in Angola(namgwang construction) 2008. 3 Asphalt waterproofing sheet and method(using butyl rubber or polyvinyl butyl) Korea Patent No. 10-08140872008. 3 Change the company name to "AHJIN LAYER"2008. 3 Manufacturing unit for Asphalt waterproofing sheet Patent No. 10-08149452008. 6 Move to Bucheon Gyeonggi2008. 6 Delivery the Patents waterprooping sheet for Mirmar 3Tower in Angola(namgwang construction)2008. 7 Trademark registration number : 40-07345462008. 9 Delivery waterproofing materials for roof of Bucheon Sosa the National Sports Center2009. 1 Utility Model Patent (Application No. 0000194)2010. 1 Self sticking asphalt waterproofing sheet and new method using the sheet Korea Patent No. 10-09403502009. 2 AHJINLAYER Co Ltd (Corporate Registration2010. 6 Register Venture CompanyApplicated new construction Technology to Ministry of Land Application. Apply materials to field with Samsung and many other major construction.Selected Newdeal policy company by Buchoen.2011. 1 Recognition R&D department2011. 2 Selected e-trade support project in Buchon 2011. 2 Participated in Kyung Hyang Housing Fair Exhibition2011. 3 Presentation to SK Engineering & Construction Headquarters and field staff relative
