Company profile

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“ A company that is expected better tomorrow

    • Sustainable Growth

      Continuous development

      2010 ~ present

      STI is a creative top-level company with long experience and continuous research and development. We are continuously growing through various product development and business diversification with thermal technology.

    • (주)에스티아이의 2010 ~ 현재 연혁 사진
    • 2020
      • 09 Verification of Best Human Resources Development.
    • 2019
      • 12 Verification of Excellent Corporation and R&D Center by Ministry of Science and ICT.
      • 03 Receiving a minister citation for Model Taxpayer (Ministry of Economy and Finance).
      • 02 Receiving a minister citation for labor-management cooperation CEO (Ministry of Employment and Labor).
    • 2018
      • 12 Achieved '' 55th The day of Trade. 100 Million Dollars Export Tower''
      • 12 Selected as 2018 Trader of the Year
      • 11 Designated as Daegu Metropolitan city Star 100 Company
      • 09 Chairman Tae-il Seo, selected as TRADER OF THE MONTH
      • 07 Selected as KDB Global Challengers 200 Company
        Selected as Superior Venture Company
      • 05 Designated as World Class 300 Company
      • 01 Moved Head Office to Daegu Seongseo 5th High-tech Industrial Complex
    • 2017
      • 03 Started construction of Daegu Plant in Seongseo 5th High-tech Industrial Complex
    • 2015
      • 12 Presidential Award Certificate
      • 11 Gyeongbuk PRIDE product designation
      • 09 Gyeongsangbuk-do Pride Product Registration - Gyeongsangbuk-do
      • 06 Designated as a Promising Small and Medium Enterprise by Small and Medium Business Administration
        Gyeongbuk TP Pride 100-company designation - Gyeongbuk Techno Park
    • 2014
      • 12 Gyeongbuk Small and Medium Business Award (Technology Development Dept.) - Gyeongsangbuk-do Governor
        Daegu Gyeongbuk Advanced Venture Industry Award - Minister of Commerce, Industry and Energy
      • 11 Prize for Venture Activation Merit of Small and Medium Business Administration
      • 07 Root technology specialized enterprise designation
      • 05 Verification of venture company
      • 04 Confirmation of parts and material specialty enterprise
        Participated in global Jiangsu enterprise development business
        Selected as a Military Service Specialist
        Selected as the best company to work
      • 03 Selected as a support project for 03 day learning
    • 2013
      • 12 Registered patent (solid oxide fuel cell housing)
        Patent registered (method and apparatus for treating animal carcasses by alkaline hydrolysis)
        5 million dollar export tower prize
      • 11 Selected as a conditional task for purchasing from the Small and Medium Business Administration (Localization of vaporization device for optical fiber preform)
      • 08 Gumi Plant Completion Ceremony
      • 03 Exported optical fiber preform equipment to China
    • 2012
      • 10 Started construction of 10 new Gumi factory
      • 06 Excellent Green Buzz Recognition, Super-com Eco-friendly New Product, R&D Project
      • 04 Re-recognition of Clean Workplace
      • 03 Exported optical fiber preform and equipment to China
        Delivery of Sapphire Thermal Crusher
      • 02 Delivery of high-purity aluminum sintering furnace for LED
    • 2011
      • 10 0.5 Lube upper opening type kiln development
      • 09 Delivery of sapphire heat treatment 23 (SSLM)
      • 05 Supplied module type large sintering furnace for ITO target of Samsung Corning Precision Materials
      • 04 Supplied with sapphire heat treatment (LG Siltron mass production system)
      • 02 Supplied Thermal Crusher for Solar Cell (LG Siltron)
      • 01 Exported optical fiber preform Elongation equipment to China
    • 2010
      • 12 First export of optical fiber preform equipment to China
      • 10 Third export of Sintering / Annealing equipment of optical fiber preform to China
      • 07 Export of fiber optic sintering furnace to China
      • 04 Development and delivery of LED sintering furnace for mass production of phosphor
    • Sustainable Growth

      Innovation and leap

      2000 ~ 2009

      STI is a creative top-level company with long experience and continuous research and development. We are continuously growing through various product development and business diversification with thermal technology.

    • (주)에스티아이의 2000 ~ 2009 연혁 사진
    • 2009
      • 12 Formation of STI Prize for university students (Gyeonggi Provincial Promotion Foundation)
        Delivered to large scale sintering furnace (Jeonnam TP)
        Sintering equipment of optical fiber preform 2nd export to China
      • 10 Hydrogen Fuel Cell SOFC Consortium Challenge (Daekyoung area 3rd year / HOT BOX)
      • 07 First export of sintering / annealing equipment for optical fiber preform to China
      • 05 Performed production environment task (Small and Medium Business Administration)
      • 02 Recognition of establishment of affiliated research institute
    • 2008
      • 08 Electric kiln K mark recognition
      • 06 Patent application for cylindrical solid fuel for reduction firing
      • 03 Applied patent for ceramic sintering furnace
      • 01 Recognized Clean Workplace (Korea Occupational Safety & Health Agency)
    • 2007
      • 02 Patent application for electric grill using grill
    • 2005
      • 12 Registered patent for oxidation and reduction electric kiln for ceramics
      • 01 Patent application for manufacturing quartz bell-jar using vacuum
    • 2003
      • 09 Applied for patent for solid reductant manufacturing method
      • 07 Applied patent for reducing electric kiln
    • 2002
      • 05 Applied for patent for optical fiber pre-casting furnace
        Establishment of affiliated research institute
      • 04 Registered as Korea Industrial Promotion Association
      • 03 Registration of utility model for wafer sintering machine
    • 2001
      • 10 Patent applied for degreasing of optical fiber pre-form
      • 08 Certified as ISO 9001 / KS 9001
    • 2000
      • 05 Registered patent for spinning and lifting device of sintering furnace of optical cable manufacturing equipment
    • Establishment of Foundation

      Establishment and Foundation

      1989 ~ 1999

      STI is a creative top-level company with long experience and continuous research and development. We are continuously growing through various product development and business diversification with thermal technology.

    • (주)에스티아이의 1989 ~ 1999 연혁 사진
    • 1999
      • 10 Sintering furnace for the production of glass casting as fiber-optic pre-stage
        Registration of utility model for lifting and lowering of molds
      • 05 Applied a patent for optical fiber manufacturing device
    • 1998
      • 07 Selected as an export promising small business
    • 1997
      • 12 Selected as a venture company