South Korea’s Taihan Cable & Solution will invest approximately $360 million in the first phase of a new high-voltage submarine cable manufacturing plant, the company said on Saturday.
The facility, known as Dangjin Submarine Cable Plant 2, will be located in the Godae District of the Asan National Industrial Complex in Dangjin, Chungcheongnam-do. Groundbreaking is expected later this year, with operations targeted to begin in 2027.
The investment, amounting to 497.2 billion Korean won, is aimed at expanding production capacity to meet increasing domestic and international demand for submarine cables, driven by growth in offshore wind power and the West Coast Energy Highway project.
“By moving forward with the construction of submarine cable plant 2, we are not only responding to the growing demand for HVDC submarine cables, but also positioning ourselves to actively participate in the expanding West Coast Energy Highway project,” said Song Jong-min, vice chairman of Taihan Cable & Solution.
The plant will focus on the production of 640kV-class high-voltage direct current (HVDC) and 400kV-class high-voltage alternating current (HVAC) submarine cables. It will include advanced technologies such as a Vertical Continuous Vulcanisation (VCV) system, which is used in the manufacturing of extra-high-voltage cables.
Once operational, the new plant is expected to deliver nearly five times the production capacity of Taihan’s existing submarine cable facility, which is located adjacent to the new site. The facility will span approximately 215,000 square metres—roughly the size of 30 football fields.
“With our turnkey competitiveness in submarine cables, we aim to lead the global market, strengthen national competitiveness, and contribute to energy security,” Song added.
Taihan said a second phase of investment may be pursued based on future market conditions. The announcement comes shortly after the company completed cable installation for the 364.8MW Yeonggwang Nakwol offshore wind project.
