LS Cable & System (LS C&S) has started construction on the Donghae-Singhamyeong transmission network  project of the Korea Electric Power Corporation (KEPCO) that will see the installation of the world’s first commercialized 500 kV 90°C (high-temperature) HVDC cable.

A press release said that the Phase 1 project of the Donghae-Capital Area Initiative will transmit power generated in the Donghae region to the Seoul Metropolitan Area. It is seen as a core part of the national power supply.

The cable being used in this project is a high-specification product that can increase the transmission capacity by up to 50%, as the conductor’s permissible temperature is higher than existing 70°C products. Its technological capability was officially recognized when it passed KEPCO’s preliminary qualification screening last June.

LS C&S said that it is the only South Korean company with experience executing both submarine and underground HVDC projects. It cited domestic HVDC cable projects that include Jeju-Jindo, Jeju-Wando and Bukdangjin-Godeok, and is the sole supplier for the entire length of this current project. 

“Commercialization experience is key in HVDC projects to secure power grid stability,” a company official said the release. “We will actively expand our participation in major domestic and international projects, such as the West Coast HVDC Energy Highway, the Donghae-Capital Area Phase 2, and the European TenneT project.”

LS Cable & System (LS C&S) plans to expand its U.S. operations with a $689 million investment in Chesapeake, Virginia, to add three advanced manufacturing projects tied to strategic materials and electrification.

A press release said that the new projects include a rare-earth magnet plant that would use refined rare-earth oxides sourced from countries such as Vietnam and Australia that would be processed into metallic materials and magnets in the U.S. These new investments build on the company’s flagship U.S. energy‑infrastructure project, also in Chesapeake.

LS GreenLink USA will produce high‑voltage submarine and land power cables for offshore wind and grid projects, with operations starting in 2027. Together, LS GreenLink USA and the new Chesapeake projects are intended to strengthen the U.S. clean‑energy and mobility supply chains while anchoring LS C&S’s long‑term manufacturing strategy in the American market.

“The LS GreenLink project has been a major commitment for LS C&S, and this new investment builds directly on that foundation,” said Gisu Kim, regional president of North America LS C&S. “It strengthens domestic production of critical components such as copper rod, magnet wire, and rare-earth magnets, vital to reinforcing supply chain resilience and advancing U.S. energy independence.

Rare-earth magnets are crucial components and China today accounts for a very high share of global production, with limited manufacturing capacity in the U.S. LS C&S has stated that the Chesapeake projects, including the rare-earth magnet initiative, would serve as a new growth engine by extending its cable-focused business into high-value strategic materials and by reinforcing its role in the global mobility and energy-transition supply chains.

The company is also reviewing plans to produce fine wire and high-grade copper materials in the U.S. LS C&S reports that it has already supplied fine wire to companies such as General Motors and Hyundai Motor Group. 

LS Cable & System has won a contract valued at approximately $115 million to supply submarine cables for the Formosa 4 offshore wind project in Taiwan.

A press release said that the order from project developer Synera Renewable Energy, calls for the delivery of submarine cables by 2028, when installation will begin. The specific types of cable and how many km were not disclosed, but such projects usually call for inter-array cables to connect the wind turbines and the offshore substation, and from there export cables to connect that to onshore grid connection points, typically at a much higher voltage. Previous similar LS Cable orders for Taiwan offshore wind have included both 66 kV inter-array and 220 kV export cable packages.

The Formosa 4 wind farm will be located about 18 km off the coast of Miaoli County, in western Taiwan, and is expected to have a capacity of 495 MW once operational. The wind farm will use 35 turbines and will require both offshore and onshore substations.

The deal represents LS Cable’s 10th consecutive offshore wind cable order in Taiwan since first entering the market in 2019, continuing its involvement as a major cable supplier in the region’s energy transition initiatives. The company previously supplied cables for eight projects in Taiwan’s first phase of offshore wind development, and with this latest contract has now secured early orders in the second phase for both the Fengmiao and Formosa 4 projects.

Company representatives attribute their successful run in Taiwan to continued collaboration with leading global renewable energy developers and a strengthening track record for project execution.

LS Cable & System (LS C&S) and LS ELECTRIC announced that on July 10, they signed an MOU with Korea Electric Power Corporation Corporation (KEPCO) to jointly develop and complete the world’s first superconducting power grid at a hyperscale data center in Gapyeong, South Korea, by 2028.

A press release said that LS C&S will design and manufacture superconducting cables, while sister-company LS Electric will supply superconducting fault current limiters and other power equipment. KEPCO will oversee technical and regulatory aspects and coordination.

LS C&S already demonstrated commercial viability of superconducting cable technology in 2019 when it began operating a 1-km superconducting cable section between Singal-Heungdeok Energy Center substations in Yongin, Gyeonggi Province. Compared to existing copper lines, the installation reduced transmission losses by a factor of 20.

 “This collaboration between three leading power industry companies on the world’s first superconducting power grid for data centers is a significant milestone,” said LS Electric Chairman Koo Ja-kyun. He noted that LS Cable & System’s superconducting cables and LS Electric’s advanced fault current limiters will offer optimal solutions for the eco-friendly power grid market.

The superconducting fault current limiters are key components that enhance operational stability by immediately interrupting fault currents, thereby preventing equipment damage and minimizing data loss risks. This technology is particularly crucial for AI data centers where uninterrupted power supply is essential for continuous operations.

The three companies plan to expand cooperation in developing and demonstrating superconducting grid technologies while pursuing initiatives to foster the industry ecosystem and jointly enter overseas markets. The Gapyeong project is expected to serve as a blueprint for future superconducting power infrastructure deployments globally, particularly in markets with high concentrations of energy-intensive data centers supporting AI and cloud computing operations.

LS Eco Energy Ltd. (LSEE), part of LS Cable & System, signed a Joint Development Agreement with PetroVietnam Technical Services Corporation (PTSC) during the Vietnam–Korea Economic Forum on August 12 in Seoul.

A press release said that the agreement covers investment, construction and operation of a high-voltage alternating and direct current cable manufacturing plant, marking a strategic step to strengthen Vietnam’s renewable energy infrastructure and related industries. It noted that as the world shifts to clean energy, demand for high-capacity power transmission, especially offshore high-voltage cables, is rising rapidly. At the same time, a global shortage of quality HVDC cables is slowing many renewable projects. “The partnership between PTSC and LSEE aims to tackle this challenge and position Vietnam as a regional leader in producing and exporting high-quality high-voltage cables.”

The strong backing from the two parent corporations, PetroVietnam and LS Cable & System, serves as a strategic guarantee for the scale and long-term sustainability of the venture, while underscoring their commitment to driving technological innovation, enhancing value creation, and making a positive contribution to the global green energy development goals, the release said.

LS Cable & System currently operates two large-scale manufacturing facilities in Vietnam, namely LS-VINA Cable & System in Haiphong and LS Cable Vietnam in Dong Nai. The company notes that both of its facilities have established a strong reputation for delivering high-quality power cables to domestic and export markets. The addition of the new high-voltage cable plant will complete the production value chain, meeting the rapidly growing demand in this strategic market segment.

LS Cable & System announced that it will jointly participate in the Japan-Korea Submarine Communication Network Construction Project (JAKO) with its subsidiary LS Marine Solution.

A press release said the project calls for a communication network using optical cables along a 260-km route connecting Busan and Fukuoka. Work will start this year and is expected to be completed by 2027. It described the JAKO project as a large-scale submarine communication infrastructure initiative led by a consortium of global tech giants and telecommunications companies, including Microsoft and Amazon Web Services, South Korea’s Dreamline, and Japan’s Arteria Networks. It is part of the broader E2A submarine cable system, which aims to dramatically increase digital connectivity and capacity between East Asia and North America.

LS Cable & System will oversee the entire operation, marking the first time a South Korean company has secured a global submarine communication network project on a turnkey basis, covering the whole engineering, procurement and construction processes. LS Marine Solution will install the submarine cable.

Through this project, the company aims to play a pivotal role in establishing the Northeast Asian digital highway and further strengthen its global presence in the digital infrastructure market, following its energy highway business. “LS Cable & System and LS Marine Solution will continue to strengthen global cooperation and contribute to expanding the submarine infrastructure market,” the release said. 

LS Cable & System (LS C&S), South Korea’s largest cable manufacturer, reports that it has won a $137 million contract for it to supply high-voltage cables for a project in Singapore.

 A press release said that the deal, signed with Singapore’s power supply authority, is part of a major energy infrastructure project aimed at transmitting solar-generated electricity from Indonesia to Singapore.

LS C&S will provide 230-kV cables for an underground transmission section, with responsibilities covering manufacturing, construction and installation.

 Per a report in The Korea Herald, the company said it is negotiating an additional contract potentially worth $105 million for more underground cable sections. It is exploring a partnership with Vietnam Oil and Gas Group, Vietnam’s state-run energy supplier, to transmit wind-generated electricity from a Vietnamese wind farm to Singapore via undersea cables. LS C&S expects the recent deals to pave the way for expansion into Southeast Asia’s cable submarine cable sector.

LS Cable & System (LS C&S) has signed a significant contract with TenneT Offshore, the German subsidiary of the Dutch state-owned power company TenneT, for an offshore wind farm project.

A press release said that the contract—valued at 907.3 billion won (approximately $700 million)—is for the TenneT Offshore’s LanWin4 2 GW project. LS C&S will supply ultra-high voltage direct current (HVDC) 525 kV submarine and underground cables as well as provide necessary accessories, perform electrical connection work and conduct on-site testing to ensure the project’s success. The contract will see cable supplied through 2031.

The contract continues LS C&S’s established relationship with TenneT. It had previously been chosen to supply cable for projects that include offshore wind farms in the North Sea of Europe, and others, that were valued significantly more than the latest one.

TenneT, a prominent European electricity transmission system operator, is responsible for the construction and maintenance of the high-voltage grid in the Netherlands and Germany.