SUNGDO Engineering & Construction성도이엔지

Sungdo E&C shows profitable trailing results and a low valuation, but its share price has fallen about 17% over three months.

Sungdo E&C is an engineering and construction firm focused on high-tech industrial facilities, plants and some real estate. Trailing twelve-month revenue to H1 2026 was about ₩661B with operating income of about ₩42B, but revenue fell 25.6% in 2025 after a 47.3% rise in 2024. The stock closed at ₩6,430 on 2026-10-23, well below its 52-week high of ₩14,450 but up 30.2% over one year.

What stands out

• Trailing operating margin is 6.4% and net margin 3.0%, up from 2.7% and 1.5% in 2024 on a year-end basis, while 2025 operating margin was 7.8%.
• Net income in 2025 was about ₩28B, versus ₩15B in 2024 and ₩4B in 2023, so profit has recovered from 2023 lows.
• Cash of about ₩129B is set against borrowings of ₩49B, but liabilities are 124.2% of equity and the filings given do not explain the cash flow in detail.
• The valuation metrics are low: P/E 4.9, P/B 0.3, and a 3.9% dividend yield, against a DCF base value of ₩27,981 that the data says is model-based and not a forecast.
• Foreign ownership rose from 3.4% to 4.3% over 60 days, while foreign investors were net sellers over the last 20 trading days by a small amount.

What to watch

• Next results: the Q3 2026 quarterly report is not yet in the data, and the timing of the next filing is not stated.
• Contract activity: a major sales or supply contract was filed on 2026-10-07 and an earlier one was amended on 2026-06-29; the contract values are not in the data.
• Legal matters: a lawsuit was filed or ruled on 2026-04-03, and the data does not say what it concerns or its likely impact.