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Taihan Secures Advanced Submarine Cable Installation Technology​, Strengthening Construction Competitiveness- Completes four-year joint development with the KERI and executes technology transfer- Internalizes core installation technology immediately applicable to offshore wind farms- Signs comprehensive MOU for lifecycle-wide submarine cable R&D cooperation to accelerate market expansionTaihan has secured a key technology that enhances its competitiveness in submarine cable installation. On February 11, Taihan announced that it signed a technology transfer agreement with the Korea Electrotechnology Research Institute (KERI) for a new submarine cable installation method known as the “J-Tubeless.” The agreement marks the culmination of approximately four years of joint development between the two organizations, enabling Taihan to internalize a core installation technology that can be immediately deployed in offshore wind farm projects. The transferred “J-Tubeless” applies to the stage in which submarine cables transported by cable-laying vessels are raised to the lower structure of offshore wind turbines (riser installation). Conventionally, metallic conduits (J-Tubes) are installed at the turbine foundation to guide and protect cables during this process. In contrast, the new system utilizes a flexible protective structure and dedicated support devices, enabling stable cable protection and installation without the need for separate metallic conduits. The technology was developed through a government-supported research project on offshore wind submarine power network construction, jointly conducted by Taihan and KERI with support from the Ministry of Climate, Energy and Environment and the Korea Institute of Energy Technology Evaluation and Planning (KETEP).  By reducing constraints in the cable riser installation process, the system enables faster installation and cost efficiencies while enhancing both construction productivity and long-term operational reliability, making it optimized for offshore wind environments. Through the technology transfer, Taihan has secured rights to this method and strengthened its differentiated capabilities encompassing design, manufacturing, and installation. This advancement reinforces the company’s competitive positioning in the global offshore wind market. Taihan plans to apply the technology to upcoming projects to further enhance installation competitiveness and expand its utilization in both domestic and international markets. In addition to the technology transfer agreement, Taihan and KERI signed a Memorandum of Understanding (MOU) for comprehensive cooperation in submarine cable technology development. Under the MOU, the two organizations will pursue joint research and development across the full lifecycle of submarine cables, including cable characteristics and product evaluation, installation and maintenance technologies, as well as post-laying diagnostic and monitoring solutions, with a commitment to sustained mid- to long-term collaboration. A Taihan representative stated, “Securing this technology is highly significant in that it elevates our submarine cable installation competitiveness to the next level. Building on our collaboration with KERI, we will continue advancing core submarine cable technologies and accelerate our expansion in the offshore wind market.” 

Perspective view of Taihan’s Second Submarine Cable PlantTaihan Selected as Government’s “Leading Company for Supply Chain Stabilization” in Submarine Cable Sector- First company in Korea’s wire and cable industry to be designated under the government-led program- Recognized for intensive investment in submarine cables and efforts to stabilize the offshore wind supply chain- Company commits to strengthening the submarine cable supply chain and supporting the sustainable development of the national energy industryTaihan Cable & Solution announced that it has been selected by the Government of the Republic of Korea as a “Leading Company for Supply Chain Stabilization” in the submarine cable sector, becoming the first company in Korea’s wire and cable industry to receive this designation. The designation is valid for an initial period of three years from the date of selection and may be extended for up to five years. The “Leading Company for Supply Chain Stabilization” program identifies companies that proactively respond to global supply chain risks while enhancing the self-reliance and competitiveness of domestic industries. Designated companies receive various forms of support, including financial assistance, policy support, and tax incentives. Taihan explained that its selection reflects comprehensive investments to strengthen submarine cable manufacturing and installation capabilities, as well as its contribution to stabilizing the supply chain for Korea’s offshore wind power industry. Submarine cables are a critical component of offshore wind power, a key pillar of the energy transition, and any disruption in their supply can delay individual projects and hinder the broader growth of the renewable energy sector. According to Korea’s 11th Basic Plan for Long-Term Electricity Supply and Demand, the domestic offshore wind market is projected to grow rapidly to approximately 14 GW by 2030. In this context, Taihan’s aggressive investments and technology development are regarded as key solutions for addressing structural shortages in submarine cable supply. In anticipation of growing demand and global supply constraints, Taihan declared the full-scale expansion of its submarine cable business in 2020 and has since strengthened its turnkey capabilities through major investments. These include the construction of a dedicated submarine cable plant, the acquisition of PALOS, Korea’s only offshore wind cable-laying vessel (CLV), and the acquisition of a specialized installation subsidiary. These efforts have enabled the company to secure and supply major domestic offshore wind projects, including Yeonggwang-Nakwol and Anma. Furthermore, Taihan is constructing a second submarine cable plant capable of producing 640 kV HVDC submarine cables and is reviewing the acquisition of a dedicated HVDC cable-laying vessel. These initiatives are progressing as part of the company’s preparation to participate in national strategic projects, including the “West Coast Energy Highway.” A Taihan official stated, “This designation reaffirms our role in establishing a stable offshore wind power value chain in Korea. Leveraging continued facility investment and technological development, we will further strengthen the submarine cable supply chain and contribute to the sustainable advancement of the national energy industry.” Companies selected as Leading Companies for Supply Chain Stabilization receive priority access to the Supply Chain Stabilization Fund, as well as various benefits such as government financial support and tax reductions. 

Photo) Hoban Group Chairman Seon-kyu Kim visited the Taihan submarine cable shipment site to encourage employees and celebrate the first shipment.   Taihan Successfully Completes First Mass Shipment of Submarine Cables from Dangjin Submarine Cable Plant 1- Hoban Group Chairman Seon-kyu Kim Visits Site, Encourages Employees, and Emphasizes “Safety First”- Inter-array Cables for Yeonggwang Nakwol Offshore Wind Project to Be Installed by Korea’s Only Cable Laying Vessel, “PALOS” Taihan announced on July 30 that it has successfully completed the first shipment of internally produced inter-array submarine cables from its Dangjin Submarine Cable Plant 1 in Chungcheongnam-do. The submarine cables were loaded onto the PALOS vessel and are destined for the Yeonggwang Nakwol Offshore Wind Power project, located off the coast of Nakwol-myeon, Yeonggwang-gun, Jeollanam-do. This shipment is particularly significant as it marks the first mass-produced output from Dangjin Submarine Cable Plant 1, which was completed in June 2025. Taihan has demonstrated its capability to consistently deliver critical submarine cable components vital to offshore wind project success on schedule. The inter-array cable shipment and installation will take place over three phases, with approximately 2,000 tons of initial cables loaded last week to align with the offshore wind farm construction timeline. The PALOS vessel, Korea’s only cable laying vessel (CLV), which previously completed export cable installation for the Yeonggwang Nakwol project, is scheduled to transport and install the first-phase cables at the site in early August. Chairman Seon-kyu Kim of Hoban Group visited the loading site to congratulate and encourage the workforce. He emphasized the importance of contributing to the development and supply chain stability of the offshore wind industry, stating, “We must supply flawless products to ensure power grid reliability.” He further underscored the priority of employee health and safety, urging strict compliance with safety protocols across all operational stages. Taihan continues to bolster its offshore wind and submarine cable production capabilities. Following the completion of Dangjin Submarine Cable Plant 1, which can produce both inter-array and export cables, Taihan approved investment in a second submarine cable plant on July 16. This new facility will manufacture 640kV HVDC and 400kV HVAC cables, with construction slated to begin within the year and operations planned for 2027. 

As global demand for submarine cables increases, the industry is experiencing a shortage of cable-laying vessels (CLVs) and rising charter rates. The possession of dedicated cable-laying vessels is increasingly seen as a critical competitive advantage in the submarine cable industry. To establish full turn-key capability—from production and transport to installation and maintenance—Taihan acquired the cable laying vessel (CLV) PALOS in November 2023.Unlike converted barges (CLBs), PALOS was designed and built specifically for submarine cable installation and is currently the only CLV of its kind in Korea. It boasts superior functionality, capable of operating in a wide range of sea conditions regardless of depth.