Nuclear decommissioning-related stocks showed mixed movements across individual names. While many stocks rose across the broader value chain—including design, maintenance, and equipment—Woori Technology, a leading instrumentation and control stock, underwent a relatively sharp correction.

South Korea's nuclear decommissioning industry is entering a phase of full-scale dismantling, beginning with Kori Nuclear Power Plant Unit 1, the country's first commercial reactor to be decommissioned. The government has also pursued the localization of related technologies and the cultivation of an industrial ecosystem as key policy priorities. With steady demand for decommissioning aging nuclear power plants continuing overseas, including in the United States, expectations are growing for domestic companies to participate across the value chain, from design and maintenance to instrumentation and structural construction.

As of the morning of the 11th, Hantec, which handles industrial equipment such as heat exchangers, recorded the largest gain, rising 2,000 won (7.29%) to 29,450 won. Hyundai Engineering, which handles EPC for nuclear and power plants, also rose 4,700 won (4.25%) to 115,300 won.

This was followed by Withtech, a semiconductor and instrumentation equipment company, which gained 450 won (4.79%) to 9,840 won, and BHI, a nuclear equipment manufacturer, which rose 2,100 won (3.74%) to 58,200 won. KNR Systems, a robotics testing and verification equipment company, climbed 410 won (2.74%) to 15,370 won; Orbitech, involved in radioactive waste treatment and decommissioning, rose 55 won (1.10%) to 5,050 won; and Woojin, a nuclear instrumentation company, edged up 20 won (0.13%) to 15,190 won. Daechang Solution (1.93%) and heat exchanger manufacturer Wonil TNI (0.79%) also closed higher.

On the other hand, Woori Technology, a nuclear instrumentation and control system company, posted the steepest decline, falling 500 won (-4.08%) to 11,750 won. KEPCO KPS (-0.11%), responsible for nuclear plant maintenance; KEPCO E&C (-0.20%), a nuclear design firm; Vitzrotech (-0.22%), a power equipment company; and S&L (-2.27%), a piping and valve manufacturer, also showed weakness. Doosan Enerbility, a leading nuclear stock, was also traded down 1,400 won (-1.75%) at 78,500 won.

Further verification is needed regarding future disclosures related to orders and licensing.

[※ This article is provided as investment reference information and does not recommend the purchase or sale of any specific stock. Investment decisions and responsibilities lie with the investor. This article was written with AI assistance.]