Woojin Ntec우진엔텍

Woojin Ntec's shares have fallen sharply after a trading halt and a suspension of business with a client, with the company's latest filings showing a profitable but slowing business.

Woojin Ntec maintains instrumentation and control systems for nuclear and thermal power plants. Trailing results to H1 2026 show revenue of ₩47.3B...

What stands out

• Trailing twelve-month revenue is ₩47.3B with operating income of ₩6.2B, a 13.2% operating margin, and net income of ₩6.2B.
• Annual revenue grew 8.1% in 2024 but only 1.9% in 2025, while operating income fell from ₩5.9B in 2023 to ₩5.1B in 2025.
• The share price closed at ₩11,130, down 54% over one year and about 68% below its 52-week high of ₩34,900.
• Recent filings include several suspensions of transactions with a business partner, a trading halt, and a notice on exclusion from substantive review of listing eligibility.
• News headlines on October 16, 2026 report a 27% share drop on the first day of trading resumption, attributed to a client halting sales and to public bidding restrictions.

What to watch

• Whether the company resolves the exclusion from substantive review of listing eligibility and the decision deadline set by the exchange.
• Further filings on the business partner suspensions and any effect on revenue from public bidding restrictions.
• The next half-year or annual report, which the data does not yet show, to confirm whether margins hold.