Hansun Engineering한선엔지니어링

Hansun Engineering's reported profits and revenue have grown strongly, but the stock has risen sharply and the valuation is high relative to the company's own DCF estimate.

Hansun Engineering makes instrumentation fittings, valves and plumbing products for industrial customers such as shipbuilders and refiners. Its 2025 revenue rose 30.2% to ₩63.2B and net income reached ₩8.9B, and trailing results to H1 2026 show revenue of ₩80.6B with a 21.4% operating margin. Free cash flow is negative at -₩29.9B and borrowings of ₩46.8B exceed cash of ₩13.5B.

What stands out

• Trailing revenue to H1 2026 is ₩80.6B and operating income is ₩17.2B, a 21.4% operating margin, up from 15.4% in 2025 and 10.1% in 2024.
• Net income in 2025 (₩8.9B) was well above operating income (₩9.7B minus tax and other items would be lower), but trailing net income to H1 2026 is ₩6.6B, so earnings are not rising steadily.
• Free cash flow is negative at -₩29.9B on a trailing basis, while borrowings (₩46.8B) are much larger than cash (₩13.5B).
• The share price is ₩15,180, up 35.3% over three months and 38.4% over one year, but well below its 52-week high of ₩37,300. The company's own DCF base value is ₩2,311 and the bull case is ₩8,323, far below the current price.
• Foreign ownership fell from 6.9% to 1.1% over 60 days, while retail investors were net buyers over the last 20 days and institutions were net sellers.

What to watch

• The next quarterly and annual results, to see whether margins hold and free cash flow turns positive.
• Filings on the convertible bond buyback decision, derivatives trading loss and executive trading plans, which were all reported in 2026.
• Only one recent news headline appeared in the data, so there is little press coverage to gauge sentiment beyond a stock-picking article.