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Hyosung Heavy Industries

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Hyosung Heavy Industries is a South Korean industrial company under the Hyosung Group supplying power equipment, grid solutions, renewable-energy and hydrogen systems, digital services, and construction services.

Last updated October 30, 2026

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Overview

Hyosung Heavy Industries is a South Korean industrial company whose work spans power equipment, grid systems, energy-transition solutions, digital services, and construction. The company’s heritage in heavy electrical equipment extends back more than five decades, while Hyosung Heavy Industries Co., Ltd. became a separate company in 2018. Its official materials present the business as a global energy-solutions provider, with a stated ambition to lead in energy solutions and develop technology for a more sustainable future. Its power-equipment portfolio includes transformers, gas-insulated switchgear and other circuit breakers, and distribution equipment. For grid stability and transmission, it offers energy-storage systems (ESS), STATCOM, high-voltage direct-current transmission systems (HVDC), and microgrid solutions. Its R&D materials also describe work on medium- and low-voltage direct-current systems, power-conversion systems, digital substations, and equipment asset-management services, including the ARMOUR solution. The company’s energy-transition activities include environmentally oriented transformers and switchgear, renewable-energy systems such as solar EPC and inverters, and hydrogen-related infrastructure, including hydrogen refueling stations. Its official site also describes hydrogen-industry value-chain activities and work on hydrogen engine-generator demonstrations. These offerings position the company across electrical infrastructure and emerging energy technologies, rather than as a producer of a single category of equipment. Hyosung Heavy Industries also has a construction business covering housing, buildings, and civil engineering. Its representative premium residential brand is Harrington Place. The company’s CEO message describes this business as contributing to sustainable urban infrastructure and lower-carbon living. Its publicly documented international activities include manufacturing and projects in India, the United States, Europe, Africa, and other markets. Examples include an ultra-high-voltage transformer factory in Memphis, a European R&D center in the Netherlands, STATCOM production capacity in India, and grid or battery-storage projects in Ethiopia and South Africa. The company’s official materials emphasize technical development, global market activity, ESG management, and expansion into hydrogen and renewable energy. The supplied sources identify Woo Tae-hee as a company representative and identify Yang Dong-ki as CEO of the construction business.

History

Hyosung Heavy Industries’ history combines a long-established heavy-electrical-equipment business with a separate corporate identity formed in 2018. The company’s official CEO message says it has accumulated more than fifty years of experience and expertise in heavy electrical equipment. Its R&D institute, according to the company, was established in 1978 and has worked on the development of Korea’s heavy electrical equipment technology. This earlier industrial and research background underpins the company’s present role in power equipment and grid infrastructure. The company’s official history records a range of product, manufacturing, and market developments before and after the 2018 separation. In 2012, its power business received a national technology award, and the company recorded solar-inverter certification and development of a dual-cell stack. In 2013, its 245 kV and 420 kV GIS products were selected as World-Class Products, and it won a turnkey contract for a solar power plant in Mozambique. In 2015, the company developed MMC STATCOM and received its first overseas orders in India and Panama; it also obtained international certification for a 5 MW offshore wind power system. The official chronology identifies the 2018 separation of Hyosung Heavy Industries Co., Ltd. as a key corporate milestone. That year also saw the opening of the Hyosung Square exhibition space at the Changwon plant and the establishment of STATCOM production facilities at the Pune plant in India. In 2019, the company joined the Hynet hydrogen-refueling-station consortium and completed a hydrogen refueling station at the National Assembly in Yeouido, Seoul. In 2020, it signed a memorandum of understanding with the Linde Group to pursue liquefied-hydrogen business, opened a high-voltage transformer factory in Memphis, Tennessee, and established a liquefied-hydrogen refueling station in Samcheok. The company also records a contract in 2020 for what it describes as Korea’s first MVDC and LVDC construction project. In 2021, Hyosung Heavy Industries signed an investment agreement with the Linde Group for a liquefied-hydrogen joint venture and entered a memorandum of understanding with Busan City and Korea Asset Management Corporation on developing a liquefied-hydrogen industry ecosystem in Busan. In 2022, it signed a large battery-energy-storage supply contract in South Africa and an agreement for expansion of the southern national power grid in Ethiopia. Its R&D chronology documents work on a 200 MW voltage-source HVDC system, MVDC, power-conversion systems, digital-substation equipment, and environmentally oriented transformer and GIS technologies. More recent milestones include establishment of a Netherlands R&D center in May 2023 and an MOA with INNIO Jenbacher in July 2023 for a hydrogen-engine generator demonstration project. The company’s current official materials present it as a global energy-solutions business with activities in eco-friendly power equipment, grid enhancement, hydrogen energy, renewable energy, and digital solutions. Its construction business covers housing, buildings, and civil engineering, and includes the Harrington Place residential brand. The company describes ESG management and sustainable infrastructure as important parts of its direction.

  • 2023

    Established a Netherlands R&D center and signed an MOA for a hydrogen-engine generator demonstration project

  • 2022

    Signed a large battery-energy-storage supply contract in South Africa and an Ethiopian national-grid expansion contract

  • 2021

    Signed an investment agreement with Linde Group for a liquefied-hydrogen joint venture

  • 2020

    Signed a liquefied-hydrogen business MOU with Linde Group; opened a Memphis transformer factory and a Samcheok liquefied-hydrogen station

  • 2019

    Joined the Hynet hydrogen refueling station consortium and completed the National Assembly hydrogen refueling station

  • 2018

    Hyosung Heavy Industries Co., Ltd. separated as a company; STATCOM production facilities established at the Pune plant

  • 2015

    Developed MMC STATCOM and won first overseas orders in India and Panama; 5 MW offshore wind system received international certification

  • 2013

    245 kV and 420 kV GIS selected as World-Class Products; solar plant turnkey contract won in Mozambique

  • 2012

    Power business received a national technology award; solar-inverter certification and dual-cell stack development recorded

  • 1978

    Heavy Industries Research Institute established

Products and positioning

A global industrial energy-solutions provider under the Hyosung Group, combining heavy electrical equipment and grid infrastructure with renewable energy, hydrogen, digital services, and construction.

  • Transformers and eco-friendly transformers

  • Circuit breakers and gas-insulated switchgear

  • STATCOM

  • Energy-storage systems and power-conversion systems

  • HVDC transmission systems

  • Solar EPC and solar inverters

  • Hydrogen refueling stations

  • ARMOUR power-equipment asset-management solution

  • Harrington Place residential offering

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