PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩80 per share · Prices as of the 2026-10-02 close
Dongkuk Refractories & Steel runs on two pillars, steelmaking refractories and steel pipe products, and while its 2025 operating margin improved from the prior year, quarter-to-quarter earnings volatility remains high.
The refractory segment accounts for roughly two-thirds of revenue, with Dongkuk Steel and other domestic and overseas steelmakers as key customers.
The 2025 consolidated operating margin rose to 3.1% from 1.9% and 1.0% in 2023 and 2024, but the fourth quarter of 2025 saw a sharp profit drop and a net loss.
Revenue and operating profit showed a sequential recovery in the first and second quarters of 2026.
Korea's steel industry is undergoing capacity cuts and government-led restructuring to address oversupply, which directly affects downstream demand for the company.
The refractory industry is an oligopolistic capital-intensive sector with about 60 domestic players and high barriers to new entry.
Dongkuk Refractories & Steel was established in 2004 through a spin-off from Dongkuk Industries and produces steelmaking refractories and steel products.
The refractory segment operates production facilities with roughly 78,000 tons of annual capacity across Masan, Gimhae, and overseas subsidiaries, while the steel segment has about 30,000 tons of domestic annual capacity.
According to the company's regulatory filing, the most recent half-year revenue mix was roughly 67% refractories and 34% steel, with domestic sales at 89% and exports at 11%.
The refractory segment manufactures shaped and unshaped refractories along with ceramic products supplied to domestic and overseas steelmakers, with affiliate Dongkuk Steel among the key customers.
The company also holds equity stakes in refractory-related subsidiaries in China, giving it an overseas production and supply footprint. Since its founding in 2004, it has maintained four subsidiaries including Dongyeon SNT and Geumhwa Steel, and operates as part of the Dongkuk Industries group.
As of the end of June 2026, the company had 137 employees, consistent with its scale as a small-to-mid-sized manufacturer.
Refractories are non-metallic ceramic materials that withstand temperatures above 1,300 degrees Celsius, and about 70% of domestic refractory output is consumed by the steel industry, with the remainder used in cement, chemical, and other high-temperature furnace applications.
| Quarter | Revenue | Operating profit | Op. margin |
|---|---|---|---|
| 2025Q2 | ₩29.2B | ₩1.6B | 5.3% |
| 2025Q3 | ₩28.6B | ₩1.2B | 4.4% |
| 2025Q4 | ₩26B | ₩200M | 0.6% |
| 2026Q1 | ₩27.8B | ₩600M | 2.0% |
| 2026Q2 | ₩30.1B | ₩900M | 3.0% |
| Year | Revenue | Operating profit | Net income (parent) | Op. margin | ROE | Debt-to-equity |
|---|---|---|---|---|---|---|
| 2022 | ₩118.2B | ₩4.2B | ₩3.7B | 3.6% | 4.7% | 59.3% |
| 2023 | ₩108.4B | ₩2.1B | ₩500M | 1.9% | 0.6% | 56.5% |
| 2024 | ₩110.4B | ₩1.1B | ₩1.6B | 1.0% | 2.1% | 55.8% |
| 2025 | ₩110.7B | ₩3.4B | ₩600M | 3.1% | 0.7% | 53.3% |
Consolidated basis (financial statements including subsidiaries) · Final figures from DART filings · Net income attributable to owners of the parent · Data as of 2026-08-23
Annual revenue declined from 118.18 billion won in 2022 to 108.39 billion won in 2023, then edged up to 110.36 billion won in 2024 and 110.73 billion won in 2025, holding at a similar level for three straight years.
Operating profit fell from 4.21 billion won (3.6% margin) in 2022 to 2.08 billion won (1.9%) in 2023 and 1.14 billion won (1.0%) in 2024 before recovering to 3.38 billion won (3.1%) in 2025.
Net income attributable to owners dropped sharply from 3.71 billion won in 2022 to 474 million won in 2023, rebounded to 1.63 billion won in 2024, then fell again to 581 million won in 2025, showing that bottom-line results did not fully track the operating profit improvement.
On a quarterly basis, revenue of 29.19 billion won, operating profit of 1.56 billion won, and net income of 861 million won in the second quarter of 2025 slowed to 28.56 billion won, 1.24 billion won, and 637 million won in the third quarter, before revenue plunged to 26.04 billion won and operating profit to 167 million won in the fourth quarter, resulting in a net loss of 442 million won.
In 2026, revenue and profit improved sequentially over two straight quarters, with the first quarter posting 27.84 billion won in revenue, 565 million won in operating profit, and 86 million won in net income, and the second quarter posting 30.11 billion won, 893 million won, and 437 million won respectively.
Total equity stayed largely stable, from 82.45 billion won in 2022 to 82.05 billion won in 2025, while the debt ratio eased from 59.3% to 53.3% over the same period.
Operating cash flow remained in the range of roughly 5.6 to 6.7 billion won each year from 2022 to 2025, suggesting relatively stable cash generation despite the volatility in reported earnings.
Refractories are non-metallic ceramic materials that withstand temperatures above 1,300 degrees Celsius, with about 70% of domestic output consumed by the steel industry and the rest used in cement, chemical, and other high-temperature furnace applications.
Korea has around 60 refractory manufacturers, but the sector's oligopolistic structure limits new entry given the capital and technical requirements of the capital-intensive business.
Market leader Chosun Refractories holds the top domestic market share in refractories, counts POSCO as its main customer, and also ranks among the larger global players.
Dongkuk Refractories & Steel stands out for relying on the Dongkuk Steel group as a core demand base, giving it a relatively stable affiliate order flow.
The downstream domestic steel industry has faced headwinds since 2025 from weak construction demand combined with oversupply, prompting Hyundai Steel to shut down a rebar production line with about 750,000 tons of capacity at its Incheon plant, while Dongkuk Steel has also cut roughly one million tons of capacity to manage utilization.
The government is promoting voluntary supply adjustment and low-carbon transition for oversupplied product categories through an industry upgrade plan and related legislation, though industry observers expect an asymmetric mix of recovery and continued weakness across different steel products through 2026.
Some industry commentary points to potential demand growth for refractories and advanced ceramic materials across steel, cement, and chemical high-temperature industries as environmental regulations tighten.
No specific earnings guidance, capacity expansion, or new order disclosures from the company were identified, so near-term results are likely to hinge largely on steel industry utilization rates and affiliate order volumes.
The sequential improvement in revenue and operating profit over two consecutive quarters in the first half of 2026 suggests some normalization following the sharp deterioration in the fourth quarter of 2025.
A key point to watch is whether the capacity cuts underway at Hyundai Steel and Dongkuk Steel, together with the government's steel industry upgrade plan, translate into an actual recovery in utilization rates.
Some industry commentary has suggested that refractory business expansion is expected as environmental policy tightens, with demand growth anticipated across steel, cement, and chemical high-temperature industries.
If the company diversifies into the advanced ceramic materials area it has referenced, its revenue base could broaden into applications such as high-temperature industrial components, electronic materials, and insulation, though no specific timeline or revenue contribution has been disclosed.
Its overseas production and supply network through Chinese subsidiaries could act as a buffer if the domestic steel cycle weakens further.
Overall, the pace of steel industry restructuring execution and affiliate order flow appear to be the key near-term variables, while progress on ceramic materials diversification is the more medium- to long-term factor.
The current share price trades below the company's book value per share, putting it in a discounted range relative to net assets.
On the earnings side, the sharp decline in net income during 2023 and 2024, the renewed contraction in 2025, and the net loss recorded in the fourth quarter of 2025 all point to significant earnings volatility, warranting caution when interpreting multiples based on any single period.
In contrast, the operating margin has shown a gradual improvement since bottoming in 2024, continuing into 2025 and the first half of 2026, making the durability of this core profitability recovery an important reference point for valuation.
Dividends have varied from year to year depending on results, with the scale of net income in a given year tending to directly affect payout capacity.
Ultimately, examining both the share price level relative to net assets and the sustainability of the earnings recovery together can help in understanding the current valuation.
PER, EPS, PBR and BPS are all calculated in-house (the same method as Naver and Toss) · Dividend yield = cash dividend per share from DART filings (supplemented by KRX) ÷ current price · As of 2026-08-23
The operating margin bottomed at 1.0% in 2024 before improving to 3.1% in 2025, and both revenue and operating profit rose sequentially in the first and second quarters of 2026.
While earnings volatility remains, the trend direction has shifted toward improvement, and whether the core refractory business's profitability recovery continues is a key point to monitor.
The current share price trades below the company's book value per share. Total equity remained in the 80-billion-won range with little change between 2022 and 2025, while the debt ratio trended lower over the same period, indicating a relatively stable balance sheet structure worth noting.
One of the refractory segment's key customers is affiliate Dongkuk Steel, which can provide relatively stable order volume compared with a fully competitive market.
The refractory industry itself is an oligopolistic, capital-intensive sector with high barriers to entry, meaning established supply chain positions tend to be relatively durable.
In the fourth quarter of 2025, revenue fell to 26.04 billion won and operating profit dropped sharply to 167 million won, resulting in a net loss of 442 million won.
Annual net income also swung widely between 2023 and 2025, making it difficult to draw firm trend conclusions from any single quarter or year, and as a small-cap company, one-off factors tend to have a relatively outsized impact.
Hyundai Steel and Dongkuk Steel are each managing utilization through facility shutdowns and capacity cuts, while weak construction activity continues to weigh on domestic steel consumption.
Downstream restructuring may take further time to complete and demand to recover, which could constrain volume growth for the refractory and steel segments in the interim.
As a small-cap KOSDAQ stock with a limited market capitalization, trading liquidity can be relatively thin. Given the company's modest absolute earnings scale, even small swings in revenue or profit tend to show up prominently in reported metrics.
A substantial portion of revenue is tied to steelmakers, exposing the company directly to changes in domestic steel production and utilization rates.
If weak construction activity and oversupply persist, both the refractory and steel segments could face reduced demand, and delays in executing the government-led restructuring roadmap could push back the timing of any recovery.
The operating margin fell to the 1% range in 2023 and 2024, indicating that margins could come under renewed pressure from changes in raw material costs or pricing power.
With revenue essentially flat around the 110-billion-won level for three straight years, a rise in cost burden could slow the pace of any profit recovery.
Since one of the refractory segment's core customers is affiliate Dongkuk Steel, changes in the affiliate's production capacity adjustments or ordering policy could directly affect results, and Dongkuk Steel's own ongoing capacity cuts could become a variable for affiliate order volumes.
The 2026 third-quarter results are expected to be disclosed around this time, and it will be important to check whether the sequential recovery seen in the first half of 2026 continued into the third quarter.
It is worth monitoring whether capacity cuts and utilization adjustments at steelmakers such as Hyundai Steel and Dongkuk Steel translate into actual demand and price stabilization, along with progress on the government's steel industry restructuring roadmap.
This is when the 2026 annual business report and full-year results, including finalized dividends, are expected to be disclosed, allowing a comprehensive check of the full four-quarter earnings trend and annual dividend level for 2026.
It is worth checking changes in the overseas revenue contribution from Chinese subsidiaries and the export revenue share, which stood around 11% based on prior disclosures.
Dongkuk Refractories & Steel is a small-to-mid-sized materials company built on two pillars, steelmaking refractories and steel pipe products, with its 2025 operating margin improving to 3.1% from the lower levels seen in 2023 and 2024, even as net income remained modest.
The sequential recovery in revenue and profit over two consecutive quarters in the first half of 2026, following the net loss in the fourth quarter of 2025, is a positive signal, but given the earnings volatility of recent years, further observation is needed to confirm whether this trend persists.
The downstream domestic steel industry is simultaneously dealing with weak construction demand and restructuring aimed at resolving oversupply, and the company's results remain within that sphere of influence.
On the balance sheet side, total equity and the debt ratio have stayed relatively stable, and the current share price trades below the company's book value per share. The relationship with the Dongkuk Steel affiliate group serves as both a stable demand base and a potential concentration risk at the same time.
Investors may find it useful to monitor both upcoming quarterly results and the progress of the steel industry's restructuring roadmap going forward.
Report written 2026-09-05 · Data as of 2026-09-04
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