Hansung Cleantech한성크린텍

Hansung Cleantech returned to a trailing loss over the past year, though its shares have risen sharply from the 52-week low and recent contract filings are frequent.

Hansung Cleantech is an engineering contractor building water treatment systems, including ultrapure water plants for semiconductor and bio customers, with some waste treatment and facility operations via subsidiaries. On trailing twelve-month figures to H1 2026 it reported revenue of ₩194B, an operating loss of about ₩0.3B and a net loss of ₩5.1B, after a profitable 2025 with a small net profit. The share price was ₩1,480 on 2026-10-19, down 5.1% over three months but up 9.5% over one year.

What stands out

• Trailing revenue is about ₩194B, but the company is loss-making at both operating and net level, with a net margin of -2.6%.
• 2024 was a sharp loss year (net loss about ₩78B on revenue of ₩155B), and 2025 returned to a small profit with revenue of ₩200B.
• Balance sheet metrics show liabilities at 176% of equity and cash of about ₩25B against borrowings of about ₩1.6B; the data does not give a debt maturity profile.
• Filings show a steady run of amended major sales or supply contracts from July to October 2026, and a recent news report cites new orders from a major electronics customer in Vietnam.
• Valuation is about 1.3x book and 0.4x sales, with no earnings-based multiple since trailing earnings are negative and no dividend is paid.

What to watch

• The next results release and whether operating profit turns positive on a trailing basis.
• Details of the contract filings and whether the Vietnam follow-on orders mentioned in news materialise.
• Foreign ownership, which fell from 3.0% to 1.2% over the past 60 days; the data does not explain the reason.