1960

• 1964. 04Established cable manufacturing plant
• 1967. 10Obtained manufacturing license for synthetic resin insulated wires (Ministry of Commerce and Industry)
• 1968. 11Joined the Korea Cable Industry Association
• 1968. 11Obtained KS certification for copper and hard-drawn copper stranded wire (Office of Supply)

1970

• 1974. 07Obtained KS certification for 600V vinyl insulated wire, figure-8 outdoor telephone wire, and service entrance vinyl insulated wire
• 1975. 05Incorporated as Koryo Cable Co., Ltd.
• 1977. 11Relocated and expanded factory to Seo-Daegu Industrial Complex

1980

• 1983. 04CCP-AP-SS cable prototype approved (Korea Telecom)
• 1983. 04PE-SS cable prototype approved (Korea Telecom)
• 1985. 04ACSR 480SQ development certified and approved for supply (KEPCO)
• 1985. 11Appointed new CEO Jung Jae-cheol
• 1988. 04Weather-resistant DV cable adopted (KEPCO)
• 1988. 05Designated as a promising SME in insulated wire sector (Korea Industrial Complex Corporation)

1990

• 1991. 1122.9kV ACSR-OC extra-high voltage steel-core aluminum insulated wire development adopted (KEPCO)
• 1992. 076.6kV and 22.9kV ACSR/AW-OC development test passed
• 1996. 03FR-CVV and FR-CVVS development test passed
• 1998. 11ISO 9002 Quality System Certification obtained

2000

• 2001. 07KS certification obtained for UTP, VCT, KIV, and vinyl cord
• 2002. 11Seoul branch office relocated to new building
• 2003. 12ISO 9001 certification obtained
• 2004. 02KS certification obtained for 6600V XLPE insulated PVC sheathed cable
• 2004. 04Safety certification obtained for TFR-GV, TFR-8, EVF
• 2004. 10Established dedicated R&D department
• 2005. 05Relocated to new headquarters
• 2005. 05CCV line expanded and extended [*CCV: process with suspended curve-type crosslinking tube]
• 2005. 06Development test completed for 22.9kV-y CN/CV-W, FR-CN/CO-W, TR-CN/CE-W, ACSR TR-OC
• 2006. 02KEPCO certification obtained for 22.9kV-y FR-CN/CO-W
• 2006. 11Designated as Management Innovation SME
• 2006. 12KEPCO certification obtained for 22.9kV-y ACSR TR-OC
• 2007. 10Designated as Daegu 3030 Enterprise
• 2008. 08INNOBIZ (Technology Innovation SME) certification obtained
• 2009. 09Japanese CVT PSE certification obtained
• 2009. 11Appointed new CEO Jung Yong-ho

2010

• 2012. 02Minister of Knowledge Economy commendation for outstanding export performance
• 2012. 10Excellence Award at Daegu Metropolitan City SME Awards
• 2013. 01Development certification obtained for 22.9kV-y FR CNCO-W/AL
• 2013. 03Established in-house research institute
• 2013. 06Certified as KEPCO Outstanding Partner SME
• 2013. 12Corporate identity (CI) renewal
• 2014. 02KS certification obtained for 0.6/1kV HF-CO
• 2014. 0550th anniversary of founding
• 2016. 04UL 1072 certification obtained
• 2016. 04Designated as IP Star Company
• 2017. 04Supply of catenary wire and dropper wire to Korea Rail Network Authority
• 2018. 05Myanmar factory completed and production commenced

2020

• 2020. 04Selected as Best Workplace by Korea SMEs and Startups Agency
• 2020. 06Investment agreement signed with KEPCO, KEPCO KDN, Gwangju Metropolitan City, South Jeolla Province, and Naju City
• 2020. 07Selected as approved business restructuring company
• 2021. 02Commendation from Daegu Metropolitan City Mayor (Mayor Kwon Young-jin)

2021

• 2021. 02Commendation from Daegu Metropolitan City Mayor (Mayor Kwon Young-jin)

2022

• 2022. 09Selected as Daegu Star 100 Company

2023

• 2023. 04KEPCO development certification obtained for 22.9kV extra-high voltage overhead cable
• 2023. 05Relocated headquarters and factory to Seongseo 3rd Industrial Complex
• 2023. 11KEPCO development certification obtained for 22.9kV CNPE-W/AL

2024

• 2024. 12Achieved $2 Million Export Tower at the 61st Trade Day ceremony
• 2024. 12Minister of Trade, Industry and Energy commendation at the 61st Trade Day