LS Cable & System (LS C&S) has completed what it described as Asia’s largest high-voltage direct current (HVDC) underwater cable production plant in Donghae, Gangwon Province, South Korea.

A press release said that the Donghae plant, named Submarine Building 4, is a 172-m-tall vertical continuous vulcanization (VCV) tower with a total floor area spanning 34,816 sq m. Approximately $141 million was spent since construction that started in July 2021.

Since building South Korea’s first submarine cable plant in 2008, LS C&S has made significant investments in its submarine business. The company also recently purchased stakes in KT Submarine, a submarine cable maker, becoming the largest shareholder (43.8%).

“The completion of this HVDC plant will serve as an accelerator for growth in the era of energy transition and the rise of the power industry,” said LS C&S CEO Koo Bon-gyu. “We will contribute to the advancement of the electric power industry through the construction of efficient energy networks and the enhancement of national competitiveness.”

Last December, LS C&S won a contract to supply HVDC cables to the Vanguard Wind Power Complex in the U.K., Korea’s largest cable deal signed to date in Europe.
More than 100 key persons—including LS Group Chairman Koo Ja-eun, LS Corp, CEO Myung Roe-hyun and LS C&S CEO Koo Bon-kyu —attended the completion ceremony.