Dongkuk Steel Mill: Thin Margins and Negative Free Cash Flow Meet a Low Price-to-Book Ratio

Thesis

The data supports a picture of a company whose earnings have fallen sharply since 2023. Operating margin went from 8.9% in 2023 to 2.9% in 2024, 1.9% in 2025 and 2.7% on a trailing basis to H1 2026. The share price sits at 0.3x book, in line with the low price-to-book levels of some steel peers (Hyundai Steel 0.2x, POSCO Holdings 0.4x). The 45.6x price-to-earnings ratio reflects very low earnings rather than a high-quality profit stream.

On the other side, the dividend yield is 4.1% and a news item from The Financial News (2026-10-14) cites Hana Securities forecasting Q3 operating profit of ₩29.8B, with Q4 expected to improve on a weaker won against the dollar. That is a broker view, not a filed result, and the data does not confirm it. Negative free cash flow and weaker foreign ownership are points the data does not resolve.

Business overview

Dongkuk Steel Mill is listed on KOSPI in the Steel & Materials sector. The company was founded on 2023-06-01 and listed on 2023-06-16, so the data holds a short history. Market capitalisation is about ₩488.1B across 49,608,017 listed shares, and the CEO is listed as 최삼영. Revenue was ₩2.63T in 2023, ₩3.53T in 2024 (up 34.0%) and ₩3.20T in 2025 (down 9.2%). Trailing revenue to H1 2026 is ₩3.44T. Large business group status disclosures appear among the recent filings.

Model estimate of fair value

Bear

₩0

-100%

Base

₩26,225

+178%

Bull

₩80,250

+751%

Model estimate based on the assumptions shown. Not a price target and not a buy or sell signal.

Base case of the 5-year discounted cash flow model on the stock's Valuation tab (statements TTM to H1 2026; discount rate 6.6%). Bear and Bull move the main assumptions by fixed steps. See and change the assumptions

Filings and data used

• Decision on Guarantee of Debt for Another PartySep 3, 2026
• Disclosure on Large Business Group Status [Quarterly Disclosure (For Individual Company)]Aug 28, 2026
• Half-year report (Jun 2026)Aug 14, 2026
• Matters Concerning Payment Amounts by Payment Method and Payment Period, and Dispute Mediation BodiesAug 13, 2026
• Cash dividend decisionAug 6, 2026
• Preliminary earningsJul 24, 2026
• Related-party transactionJul 22, 2026
• 5%+ holding reportJul 1, 2026
• Disclosure Related to Sustainability Management Report, etc. (Voluntary Disclosure)Jun 30, 2026
• Determination of Shareholder Register Closure Period or Record DateJun 12, 2026
• Disclosure of Large Business Group Status [Annual Disclosure and Q1 Use (Individual Companies)]Jun 1, 2026
• Disclosure of Corporate Governance ReportMay 29, 2026
• Dongkuk Steel Q3 Operating Profit Forecast at ₩29.8B; 4Q Expected to Improve on Weaker Won/Dollar - Hana SecuritiesOct 14, 2026
• Daily prices up to 2026-10-16
• Financial statements, trailing 12 months as of H1 2026
• Our fair value model, statements as of TTM to H1 2026

Report history

1. Oct 26, 2026Update noteBuyback / dividend / value-upDongkuk Steel Mill Files Value-Up Plan Targeting 0.3x Price-to-Book and 3–4% ROE by 2028
2. Oct 19, 2026InitiationStart of coverage (reader request)Dongkuk Steel Mill: Thin Margins and Negative Free Cash Flow Meet a Low Price-to-Book Ratio