Taihan Cable & Solution is planning to develop domestic and overseas business opportunities based on turn-key competitiveness.
The company is supplying internal network cables produced at its Submarine Cable Plant 1 to the Yeonggwang-Nagwol offshore wind farm. Submarine Cable Plant 2 is expected to expand production capacity by approximately five times when it begins full operation.
South Korea's offshore wind market is entering a phase of full-scale expansion. The government has set a target to gradually expand offshore wind capacity from approximately 0.4 GW in 2025 to 45 GW by 2040. This represents an increase of more than 110 times compared to last year.
As the offshore wind market expands, demand for submarine cables for internal and external networks is expected to increase.
In particular, as wind farms become larger and distances from land increase, the importance of high-voltage direct current (HVDC) submarine cables, which are suitable for long-distance and high-capacity power transmission, is expected to grow.
In response, Taihan is continuously expanding its submarine cable production facilities, securing dedicated cable-laying vessels, and acquiring specialized submarine construction subsidiaries to actively respond to market expansion. Going forward, the company plans to develop various business opportunities in both domestic and overseas markets based on turn-key competitiveness.
Expanding Production Infrastructure in Dangjin
To this end, Taihan is expanding its submarine cable production infrastructure centered on Dangjin, South Chungcheong Province. Submarine Cable Plant 1, which began operation in 2024, completed comprehensive construction in June 2025 and can produce submarine cables for offshore wind internal and external networks.
Taihan has accumulated production and supply track records by supplying internal network cables produced at Submarine Cable Plant 1 to the Yeonggwang-Nagwol offshore wind farm and delivering 154 kV ultra-high-voltage submarine cables to the Sinan Bigeum solar grid connection project.
To respond to increasing demand, Taihan began construction of Submarine Cable Plant 2 in September 2025, with completion targeted for 2027. This facility will be capable of producing up to 640 kV class HVDC and 400 kV class HVAC submarine cables, and will feature a 187-meter-tall Vertical Continuous Vulcanization (VCV) tower, the highest in South Korea.
When Submarine Cable Plant 2 begins full operation, Taihan's submarine cable production capacity is expected to expand by approximately five times compared to Submarine Cable Plant 1. This will enable production of not only offshore wind internal and external network cables but also long-distance HVDC submarine cables, strengthening responsiveness to large-scale submarine projects including the West Coast energy corridor.
Strengthening Construction Infrastructure
The company has also continuously strengthened its construction infrastructure. Taihan secured a dedicated cable-laying vessel (CLV) named PALOS in 2023, acquiring construction capabilities. PALOS can operate in various environments based on self-propulsion capability and positioning control systems, and has been deployed in actual projects such as the Yeonggwang-Nagwol offshore wind farm, successfully performing submarine cable laying for internal and external networks.
The company additionally secured the 11,000-ton class CLV Skandi Connector, establishing South Korea's only CLV fleet. Skandi Connector can carry approximately 7,000 tons of cable and is capable of laying external network, long-distance grid connection, and HVDC submarine cables. Taihan plans to enhance project responsiveness and construction efficiency by employing a dual-track construction system that selectively deploys the two CLVs depending on project scale and marine environment.
The company has also internalized specialized construction capabilities. By linking the specialized personnel and engineering capabilities of its submarine cable construction subsidiary Taihan Ocean Works, the company has further strengthened expertise in construction fields including transportation and laying. Recently, the company is also promoting the localization of high-performance submarine cable burial remotely operated vehicles (ROVs), expanding construction capabilities from laying to burial operations.
A Taihan official stated: "Taihan has established a business foundation capable of performing the entire process from submarine cable production through transportation and construction including laying. Based on differentiated infrastructure including South Korea's only CLV fleet and specialized construction subsidiaries, we will continue to enhance turn-key competitiveness, expand contract opportunities for domestic and overseas offshore wind projects, and strengthen our position in the global submarine cable market."
Original Korean article: Asiataimjeu
English brief by Korea Wind Intelligence, koreawindintel.com
