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.

South Korea’s LS Cable & System reported that one of its subsidiaries has received an order for extra-high voltage cable from Vietnam Electricity (EVN), the Southeast Asian country’s state-owned electricity utility.

A press release said that the cables will be installed in infrastructure projects for Ho Chi Minh City’s Tan Son Nhat International Airport and an industrial complex in the northeastern part of the country. LS Eco Energy produces extra-high voltage cables in its Vietnam plant and accounts for 80% of the local cable market. It also exports Vietnamese-made cables to Europe and North America.

LS Cable owns a 67% stake in LS Eco Energy.

EVN notes that the need for power is acute in Vietnam. It reported that increasing national power consumption is straining the resources that must be able to handle intense hot and muggy weather. The National Load Dispatch Center said that on May 28, national power consumption in a single day surpassed 1 billion kWh, and on June 14 its usage set a record peak of 1.02 billion kWh.

LS Eco Energy, a subsidiary of South Korea’s LS Cable and System, has obtained safety certification for underground residential distribution (URD) power cables from UL, a prominent U.S. safety certification organization.

A press release said that, with the UL certification, the comany plans to expand its export product range for the U.S., adding to its existing line of LAN (UTP) cables. “We expect this certification to play a critical role in expanding our presence in the U.S. market and enhancing our competitiveness in the global power cable market,” said LS Eco Energy CEO Lee Sung-ho.

The company, in collaboration with LS Cable America, intends to ramp up marketing efforts targeting power plant construction companies and power authorities to accelerate its market penetration. The URD power cables are primarily used in various distribution networks connecting solar power plants and data centers (IDCs), both of which have seen strong demand. Also boosting demand is recently imposed high  U.S. tariffs on Chinese aluminum that has led to a surge in sales of aluminum conductor URD cables from non-Chinese sources.

Due to the U.S.’s policy of excluding Chinese products, the LAN cables produced at LS Eco Energy’s Ho Chi Minh manufacturing subsidiary, LSCV, saw over a 30% increase in exports to the U.S. in the first half of this year compared to the same period last year.

South Korea’s LS Cable & System (LS C&S) has accused Taihan Electric Wire (TEW) of technology theft related to the design and layout of its new submarine cable manufacturing equipment.

Per multiple media reports, LS C&S claimed that TEW illicitly obtained the design and layout of LS Cable & System’s specialized equipment used in the production of submarine cables. Those are important as making and moving cables that can span tens of km and weigh thousands of tons reflect the company’s expertise that is a key part of its intellectual property.

The disagreement reached a new level on July 11, when police considered TEW as a suspect for violating the “Unfair Competition Prevention and Trade Secret Protection Act” and conducted a raid on its headquarters. A statement by LS C&S stated that the “theft of technology by Taihan Electric Wire is a clear criminal act,” and declared that if the allegations are proven true, the company will pursue all legal actions.

At issue was whether information about the floor plan that LS C&S had provided an architectural firm that later worked for TEW was improperly passed along. TEW recently held the official opening of a new submarine cable plant in the Godae district of the Asan National Industrial Complex in Dangjin-si, Chungcheongnam-do, and now plans to build a second such plant there that will be completed in 2026, and operational in 2027.

TEW issued a statement denying the allegations. “(Our) submarine cable factory layout is not a core technology, and there is absolutely no reason to secure a competitor’s layout and drawings for the purpose of technology theft.” It countered that LS S&C has a monopoly in South Korea, and that the country needs to have more competition to protect its market from foreign companies.