Top 10 Companies in the South Korea Overhead Conductor Industry (2025): Market Leaders Energizing National Power Infrastructure

In Business Insights
June 17, 2025

The South Korea Overhead Conductor Market was valued at US$ 287.4 Million in 2024 and is projected to reach US$ 378.6 Million by 2030, growing at a Compound Annual Growth Rate (CAGR) of 4.7% during the forecast period (2024-2030). This growth is fueled by electricity network expansions, rapid urbanization, and adoption of advanced conductor materials offering higher transmission capacity with reduced energy losses.

As South Korea modernizes its power grid to meet escalating energy demands and renewable integration goals, overhead conductor manufacturers play a pivotal role. This analysis highlights the Top 10 Companies in South Korea’s Overhead Conductor Industry—market leaders shaping the future of power transmission infrastructure.


🔟 1. LS Cable & System

Headquarters: Anyang, Gyeonggi-do, South Korea
Key Offerings: AAC, AAAC, ACSR conductors, HTLS solutions

LS Cable dominates South Korea’s conductor market with approximately 30% share, supplying major domestic transmission projects and exporting to 50+ countries. Their R&D focuses on high-efficiency conductors for next-gen power grids.

Industry Leadership:

  • Primary supplier for 765kV ultra-high voltage transmission lines
  • Pioneer in high-temperature low-sag (HTLS) conductor technology
  • Key participant in nationwide smart grid implementation

Download FREE Sample Report: South Korea Overhead Conductor Market – View in Detailed Research Report


9️⃣ 2. Taihan Electric Wire Co. Ltd.

Headquarters: Anyang, Gyeonggi-do, South Korea
Key Offerings: Transmission conductors, specialty cables

Taihan Electric specializes in durable conductor solutions for extreme environments, including coastal areas prone to corrosion and regions with heavy ice loading.

Technical Expertise:

  • Developed proprietary anti-corrosion aluminum conductors
  • Supplier for renewable energy grid interconnection projects

8️⃣ 3. Iljin Electric

Headquarters: Gunpo, Gyeonggi-do, South Korea
Key Offerings: Aluminum alloy conductors, high-tension wires

Iljin Electric manufactures premium aluminum conductors for domestic and export markets, with expanding production capacity to meet infrastructure modernization demands.

Strategic Position:

  • Preferred supplier for KEPCO transmission projects
  • Participant in regional cross-border power interconnection initiatives

7️⃣ 4. Gaon Cable Co., Ltd.

Headquarters: Jincheon, Chungcheongbuk-do, South Korea
Key Offerings: AAC, AAAC, ACSR conductors

Gaon Cable combines quality manufacturing with innovation, developing specialized conductor alloys for high-capacity transmission requirements.

Innovation Focus:

  • Urban grid upgrade solutions provider
  • High-performance alloy conductor development

Download FREE Sample Report: South Korea Overhead Conductor Market – View in Detailed Research Report


6️⃣ 5. Nexans Korea

Headquarters: Seoul, South Korea
Key Offerings: HTLS conductors, grid solutions

The Korean subsidiary of global cable leader Nexans implements advanced conductor technologies adapted for local grid requirements.

Technology Transfer:

  • Deployed European HTLS conductor designs in Korean projects
  • Wind farm grid connection specialist

5️⃣ 6. Korea Electric Power Corporation (KEPCO)

Headquarters: Naju, Jeollanam-do, South Korea
Key Contributions: Grid planning, technical specifications

As the national electric utility, KEPCO establishes conductor standards and oversees transmission infrastructure development.

Strategic Projects:

  • National transmission network expansion program
  • Jeju Island smart grid testbed implementation

4️⃣ 7. Samsung C&T Corporation

Headquarters: Seoul, South Korea
Key Role: Power transmission EPC services

Samsung C&T integrates overhead conductors in major transmission projects through collaboration with manufacturers.

Project Scope:

  • International transmission line construction
  • Domestic substation modernization

3️⃣ 8. Hyundai Heavy Industries

Headquarters: Ulsan, South Korea
Key Contributions: Transmission infrastructure solutions

Hyundai provides comprehensive power transmission services including conductor installation for complex projects.

Engineering Focus:

  • Offshore wind transmission systems
  • High-voltage line construction

2️⃣ 9. SK Broadband Co Ltd

Headquarters: Seoul, South Korea
Specialization: Power line communication tech

SK Broadband develops innovative uses of overhead conductors for data transmission and grid monitoring.

Technology Integration:

  • Smart grid communication infrastructure
  • Real-time power line monitoring systems

1️⃣ 10. Dongkuk Steel Mill Co., Ltd.

Headquarters: Seoul, South Korea
Core Products: Steel reinforcement for ACSR

Dongkuk supplies high-strength steel cores used in steel-reinforced aluminum conductors by major manufacturers.

Material Innovation:

  • High-tensile steel strand development
  • Critical supplier for conductor production nationwide

Get Full Report Here: South Korea Overhead Conductor Market – View in Detailed Research Report


⚡ Market Outlook: The Evolution of Overhead Conductors in South Korea

South Korea’s conductor industry is transitioning toward advanced solutions that enable higher-capacity power transmission with improved efficiency and reliability.

📈 Emerging Industry Trends:

  • Accelerating HTLS conductor adoption for grid upgrades
  • Development of composite-core conductors for enhanced performance
  • Specialized conductor formulations for coastal and high-load areas
  • Expansion of ultra-high voltage (765kV+) transmission networks

Get Full Report Here: South Korea Overhead Conductor Market – View in Detailed Research Report

These market leaders continue to power South Korea’s energy infrastructure, enabling the nation’s transition to a smarter, more resilient electrical grid.