Our History

2023
​Feb - Patent registration Leakage current cutoff device
         (No.10-2021-0177961)
Mar - Building a Green Line OEM Production Line
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2022
​Jan - Patent registration Leakage current cutoff device (No.10-2350771)
       - Vehicle ventilation system (No.10-2351315)
Feb - Recognition of the department dedicated to R&D departments
Mar - Environmental management system certification (ISO 14001:2015)
       - Quality management system certification (ISO 9001:2015)
Apr - Certification if venture companies
       - Electrical Safety Integrated System Green Line KC Certification Completed 
         (ESIS-D100/ESIS-C100/ESIS-S100/ESIS-E100)
Dec - Patent registration Leakage current cutoff device (No.10-2021-0125568)
       - Registration of qualification for competitive bidding by public instituions
       - Patent registration Leakage current notification system (No.10-2474435)
       - Venture country product registration (Short circuit alarm)
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2020 ~ 2021
20. Aug - Incorporation
21. Mar - Patent registration Powder Fire Extinguisher Performance Retension Device 
               (No. 10-2228550)
21. Aug - Leakage current cutoff device prototype production
21. Nov - Leakage current notification system research and development

  

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TSF System Co., Ltd
 The Electric Safety Frontrunner

H.Q : 3-20 Yangchon-gil, Gwangju-si, Gyeonggi-do   /   Lab : 46-7 Opoan-ro, Gwangju-si, Gyeonggi-do
T.+82-31-769-7815     F.+82-31-769-7818     Mail. master@chorokline.com

2021 TSF System.  All rights reserved.