Who we are | History

MTV factory 1 and 2 integration

Developed 29kV environment-friendly gas insulated switchgear for electric railway

Registered as a timber import distribution business (started fuel business)

Developed 25.8kV environment-friendly gas insulated switchgear

Developed 7.2kV 40KA 1250/2000/3150A arc panel

Acquired ISO 45001 certification

Acquired green technology certification for 72kV environment-friendly gas insulated switchgear development technology

Developed medium-voltage switchgear circuit breaker for earthquake-resistant reinforcement (0.5g) of Saeul #3 and #4

Completed 2nd factory in Sihwa Multi-Techno Valley (MTV) complex (22,604㎡)

Patent registration for gas insulated switchgear using carbon dioxide mixed gas

Registered practical design of frame connecting bracket for switchgear

4 designs for switchgear registered

Patent registration for assembly frame for switchgear

Developed 72.5kV environment-friendly gas(SF6 gas free) insulated breaker

Meteorological business registration (meteorological equipment)

Patent registration for 3-stage draw-in/out device of low-voltage motor control center

Patent registration for switchgear diagnostic device

Developed 29kV GIS

Received the $20 million Export Tower award

Developed a circuit breaker (24kV 25kA)

Developed enclosed distribution panel (24kV 25kA)

Completed an office building extension(2,400㎡)

Selected as a promising small and medium-sized enterprise in Gyeonggi Province

Awarded Presidential Industrial Medal (CEO Jeon Dong-jun)

Developed circuit breaker (12kV 1250 40kA)

Developed 480V motor control center (MCC)

Developed enclosed switchgear (7.5kV 3000A 40kA)

Developed enclosed switchgear and vacuum circuit breaker (12kV 1250A/2000A, 40kA)

Received Jang Yeong-sil Award for cluster ion generator

Registered as Renewable Energy Specialized Company

Acquired INNO-Biz (Technology Innovation Small and Medium-sized Enterprise) certification

Developed vacuum circuit breaker (24kV 630A 12.5kA / 7.2kV 630A / 1250A / 200A 25kA)

Developed metal enclosed switchgear

Developed vacuum circuit breaker (7.2kV 2000A / 1250A 40kA)

Developed motor control center (2000A / 600A 40kA)

Developed vacuum circuit breaker

Acquired KEPIC-EN certification
(Korea Electric Association, Nuclear Power License)

Obtained ISO 14001 certification

Obtained ISO 9001 certification

Established corporate research institute

Introduction of 25.8kV GIS manufacturing technology for KEPCO (NISSIN, Japan)

Listed on the Korea Stock Exchange

First export of vacuum circuit breakers to the US

Technology partnership (Toshiba, Japan)

New factory relocation to Banwol Industrial Complex

Foundation of Seondo Electric Co. Ltd.