Since 1951, Introducing our footmarks that we have been made with great ambitions.
1951 ~ 1992
| 1951 | Taeyang Measures established |
| 1968. 10 | Awarding a testimonial from Minister of Commerce and Industry (for quality improvement on measuring instruments) |
| 1969. 10 | Awarding a testimonial from Central Bureau of Measuring (for product quality improvement) |
| 1988. 05 | Beginning the producing of surveying tripod |
| 1992. 04 | Beginning export surveying items (Tripod, Staff, Pole etc) to oversea countries (Japan, Europe and America) |
1995 ~ 1999
| 1995. 01 | 'KOSECO' established |
| 1995. 05 | Software Development department organized (Developing survey software) |
| 1997. 02 | Agent agreement concluded with Proceq SA in Switzerland |
| 1997. 07 | Own surveying software developed (TY-CAD, TY-TUNNEL etc) |
| 1997. 09 ~ 1999. 07 |
Agent agreements with numerous oversea manufacturers concluded (Germany- Carl Zeiss, USA- Ocean Data Equipment Co., Japan- NISSHO Co. etc) |
2000 ~ 2009
| 2000. 01 | Appointed as an institute of Surveying Instrument Performance Test by National Geographic Information Institute |
| 2001. 03 | Korean Universal Civil Engineering & Survey Cad software developed(CivilPro) |
| 2001. 05 | Agent Agreement concluded with Leica Geosystems in Switzerland (Surveying instrument) |
| 2001. 08 | Own Electronic Field Book and Survey Cad System developed (SurveyPro, TunnelPro) |
| 2002. 05 | Own Earth-volume Calculation System developed (GSPro) |
| 2007. 03 | AutoCAD add-on software Universal Civil/Survey CAD program developed (CivilPro 2007) |
| 2007. 07 | Beginning cooperation with Topcon Korea for Survey Business |
| 2007. 10 | Embedded software “SurveyOne” developed for Topcon Total Station only. |
| 2007. 10 | Embedded software “TunnelOne” developed for Topcon/Leica Total Station only. |
| 2008. 03 | Exclusive agent agreement concluded with ACSYS in Russia for NDT devices. |
| 2008. 08 | Exclusive agent agreement concluded with KGS in Japan for JRC RC-Radar equipments. |
2010 ~ 2019
| 2011. 01 | Exclusive agent agreement concluded with Hi-Target Surveying Instrument in China. |
| 2012. 09 | Awarding a testimonial from the Seoul Metropolitan Government (for Social Work) |
| 2013. 08 | New department Precision Metrology Solution Division organized. |
| 2013. 08 | Exclusive agent agreement concluded with API in USA for Precision Metrology Equipments. |
| 2014. 01 | Agent agreement concluded with Verisurf in USA for the measurement software. |
| 2014. 11 | Exclusive agent agreement concluded with Inspecvision in England for Precision Metrology Equipments. |
| 2016. 09 | Exclusive agent agreement concluded with GSSI in USA for GPR equipments. |
| 2016. 10 | Exclusive agent agreement concluded with CHONQING LEEB INSTRUMENT CO., LTD in China for Non-destructive testers |
| 2018. 10 | Enrolled as ZWCAD 3'rd party partner(linkage with CivilPro) |
| 2019. 01 | Exclusive agent contract with 3DFlow in Italy for Photometry Processing software |
| 2019. 04 | Dealer agreement with DJI in China for Enterprise drones |
| 2019. 10 | Awarded the technical award of Korea Institute for Structural Maintenance and Inspection |
| 2019. 12 | Establishment of Drone solution department |
| 2019. 12 | Awarded an official commendation from the Ministry of the Interior and Safety of Republic of Korea |
2020 ~
| 2020. 09 | Change CI to make a new leap forward |
| 2020. 12 | Dealer agreement with GreenValley Inc. in USA for Point Cloud Data post-processing software |
| 2021. 04 | Sole-Agent contract with Giatec Scientific Inc. in Canada for Non-destructive testers |
| 2021. 04 | Exclusive agent agreement concluded with Langrui in China for Non-destructive testers |
| 2021. 05 | Sales Consignment Agreement with SK-Telecom in Korea for T-Live Caster Plan |
| 2021. 12 | Made a contract as ZWCAD Platinum Partner |
| 2023. 06 | Dealer agreement with SHAREUAV Ltd. in China for Oblique camera |
| 2023. 07 | Exclusive Agreement contract with GoSLAM for 3D Laser Scanner |
| 2023. 07 | Exclusive agent agreement concluded with TREERADAR INC. in USA for Total Tree Inspection solution |
| 2024. 03 | Received the award certificate for Director of the National Tax Service (for faithful tax payment) |