SeAH Wind, the British offshore wind structure subsidiary of SeAH Steel Holdings, is set to begin commercial operations at its local plant next month, bolstering annual revenue growth projected to reach billions of dollars. The facility has received a total investment of £900 million ($1.1 billion or 1.6 trillion won), and the company has already secured orders surpassing the plant’s construction costs, ensuring a solid foundation for stable operations, according to industry sources.
Located in Teesside, northeastern England, the plant is in the final stages of equipment installation and test production ahead of its commercial launch. The facility has an annual production capacity of up to 400,000 metric tons of monopiles—cylindrical steel structures welded from thick steel plates—which serve as seabed foundations for offshore wind turbines.
The £900 million SeAH Wind plant was established with support from various group affiliates. SeAH Steel Holdings founded SeAH Wind in the UK in 2021, initially investing approximately 400 billion won ($274 million or £217 million) in the facility. Additional funding was secured through capital increases, with contributions from SeAH Steel Holdings, its steel pipe subsidiary SeAH Steel, and overseas branches, including U.S.-based SeAH Steel America and South Korea-based SeAH Steel International.
As the UK’s sole offshore wind monopile supplier, SeAH Wind has attracted significant attention. On Feb. 13, King Charles III visited the plant to inspect its production facilities, underscoring its strategic role in the country’s renewable energy sector.
SeAH Wind has already secured orders exceeding its initial investment. In 2021, the company signed a £364 million ($458 million or 660 billion won) contract to supply monopiles for Hornsea 3, a major offshore wind farm developed by Danish state-owned energy company Ørsted in the UK.
In late 2023, while the plant was still under construction, SeAH Wind secured another large-scale contract valued at £900 million ($1.1 billion or 1.6 trillion won) to supply monopiles for Norfolk Vanguard, the world’s largest offshore wind power project. The combined value of these two deals exceeds 2 trillion won ($1.37 billion or £1.1 billion).
SeAH Wind maintains close collaboration with SeAH Steel in South Korea, which supplies steel pipes for offshore wind substructures, including jackets and pin piles. The two companies share technical expertise and actively engage in joint marketing initiatives. SeAH Wind aims to secure additional orders this year to sustain production through 2030.
“SeAH Wind has already secured orders for three years of production and is expected to generate steady annual revenue in the billions,” a SeAH Group official said. “We plan to enhance research and development, strengthen manufacturing capabilities, and maximize synergy with SeAH Steel while accelerating global expansion across Europe, Asia, and North America.”
