PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩500 per share · Prices as of the 2026-10-02 close
Wonik Materials passed its 2023 earnings trough and posted a joint recovery in revenue and operating profit through 2024-2025, with top-line growth continuing into the first half of 2026.
2025 revenue reached KRW 322.47bn and operating profit KRW 56.50bn, up 3.8% and 8.8% year on year respectively, while net profit rose 53.1% to KRW 48.70bn.
Revenue rose sequentially in Q1 2026 (KRW 88.18bn) and Q2 2026 (KRW 92.30bn), but the operating margin eased somewhat after peaking in Q4 2025.
The company is a leading domestic high-purity specialty gas producer supplying Samsung Electronics, SK hynix and Samsung Display, with a customer base heavily weighted toward Samsung Electronics.
The company is building a specialty gas production site in Manor, Texas, located near Samsung Electronics' Austin and Taylor foundry fabs.
The shares trade at a discount to net asset value, while the dividend yield remains below the sector average.
Wonik Materials was established in 2006 to manufacture and sell industrial gases and listed on KOSDAQ in 2011.
The company produces high-purity specialty gases used in semiconductor and display manufacturing, supplying a diverse product lineup including N2O, NH3, F2 mix, C4F8, Xe, CO2, Si2H6, GeH4 Mix and CH2F2 to major global semiconductor and display makers.
Its principal customers are Samsung Electronics and SK hynix, and sales to Samsung Electronics are reported to account for roughly 80% of total revenue, reflecting a concentrated customer structure.
In the display segment, the company supplies process specialty gases to Samsung Display and maintains a stable market share.
The company is credited with successfully localizing high-purity specialty gases that had previously relied on imports, contributing to greater material self-sufficiency in Korea's semiconductor and display industries.
The specialty gas business carries structural entry barriers, since once a semiconductor line is running it requires long-term stable supply and qualified suppliers are difficult to replace.
The company first entered the U.S. market in 2012 by establishing a subsidiary in Wisconsin, and expanded its scale in 2014 by acquiring U.S. precursor maker Novachem.
It is now building a new specialty gas plant in Manor, near Austin, Texas, an investment widely viewed as targeting expanded supply to Samsung Electronics' U.S. foundry operations.
| Quarter | Revenue | Operating profit | Op. margin |
|---|---|---|---|
| 2025Q2 | ₩75B | ₩11.3B | 15.1% |
| 2025Q3 | ₩82.8B | ₩14.2B | 17.1% |
| 2025Q4 | ₩86.6B | ₩16.3B | 18.8% |
| 2026Q1 | ₩88.2B | ₩15.7B | 17.8% |
| 2026Q2 | ₩92.3B | ₩14.6B | 15.8% |
| Year | Revenue | Operating profit | Net income (parent) | Op. margin | ROE | Debt-to-equity |
|---|---|---|---|---|---|---|
| 2022 | ₩581.3B | ₩88.8B | ₩57.7B | 15.3% | 13.0% | 30.9% |
| 2023 | ₩391.7B | ₩24.7B | ₩13.8B | 6.3% | 3.1% | 11.1% |
| 2024 | ₩310.7B | ₩51.9B | ₩31.8B | 16.7% | 6.6% | 21.2% |
| 2025 | ₩322.5B | ₩56.5B | ₩48.7B | 17.5% | 9.3% | 21.4% |
Consolidated basis (financial statements including subsidiaries) · Final figures from DART filings · Net income attributable to owners of the parent · Data as of 2026-09-04
Consolidated revenue in 2025 came to KRW 322.47bn, up 3.8% from KRW 310.72bn in 2024, while operating profit rose 8.8% to KRW 56.50bn, lifting the operating margin from 16.7% to 17.5%.
Net profit attributable to owners jumped 53.1% year on year to KRW 48.70bn from KRW 31.81bn, with the pace of profit recovery outrunning revenue growth. This marks a clear recovery from the 2023 trough, when revenue fell to KRW 391.67bn and the operating margin dropped to 6.3%.
In 2022, revenue had reached KRW 581.26bn with a 15.3% operating margin reflecting the semiconductor upcycle, before margins collapsed in 2023 amid the industry downturn and then rebuilt gradually through 2024-2025.
On a quarterly basis, revenue and operating profit rose steadily from KRW 75.00bn and KRW 11.31bn in Q2 2025 to KRW 86.64bn and KRW 16.27bn in Q4 2025, with the operating margin climbing from 15.1% to 18.8%.
However, in 2026 revenue kept rising - KRW 88.18bn in Q1 and KRW 92.30bn in Q2 - while the operating margin eased from 17.8% to 15.8% over the same period.
Net profit attributable to owners also declined slightly, from KRW 14.44bn in Q1 2026 to KRW 13.19bn in Q2 2026, showing a modest softening on the profit line even as revenue expanded.
Summed over the most recent four quarters (Q3 2025 through Q2 2026), revenue totaled roughly KRW 349.95bn, operating profit about KRW 60.71bn and net profit attributable to owners about KRW 54.25bn, confirming that the year-on-year profit improvement trend has continued.
Korea's specialty gas industry is heavily influenced by the utilization rates of Samsung Electronics and SK hynix's memory semiconductor production, and supply volumes have recently been rising amid growing demand for sub-10nm DRAM and expanding 3D NAND stacking processes.
Growing server demand tied to AI data center expansion and continued digital infrastructure investment are seen as underpinning a gradual uptrend across the semiconductor materials market.
High-purity refining and gas-mixing technology form the core competitive advantage in specialty gases, and high entry barriers mean the domestic market is dominated by a small number of players.
Because semiconductor lines require stable long-term supply once operational and qualified suppliers are difficult to replace even when processes change, revenue from customers tends to grow in step with new line expansions.
That said, the industry also carries cyclical sensitivity, as volumes decline alongside customer utilization rates during memory semiconductor downturns. While supply to Samsung Display adds some diversification on the demand side, revenue remains concentrated toward semiconductor customers.
The company is building a specialty gas manufacturing facility in Manor, near Austin, Texas, with a planned initial investment of roughly USD 46 million and further expansion in three phases through 2027.
The new plant is located about 20 miles from Samsung Electronics' Austin and Taylor foundry fabs, an investment interpreted as positioning to meet rising utilization at the customer's U.S. production lines.
However, the Phase 1 investment amount has not yet been finalized, and the company plans to apply for local investment incentives, so the scale of any subsidy and the final investment decision timing require further confirmation.
Domestically, the company is reported to be pursuing cost reduction and profitability improvement through expanded production of localized etching gas, process optimization and lower raw material procurement costs, centered on its Cheongju Yangcheong site.
As semiconductor process migration to finer nodes continues, demand for higher-difficulty specialty gases such as F2 mix, Xe and Si2H6 could increase, and the company has stated it is accelerating efforts to expand the share of these higher value-added gases and enter new markets.
The company is also expanding into large-scale commercial ammonia cracking equipment, ammonia reformers and clean hydrogen production, making progress in these new business areas beyond semiconductor materials a medium-term point to monitor.
The current share price trades at a discount to net asset value, with the price-to-book ratio below 1x. Given that profits recovered from the 2023 trough through 2024-2025, there is room to compare the current valuation multiple against the trading bands formed during past semiconductor upcycle recoveries.
On dividends, the yield calculated by dividing the per-share cash dividend by the current price runs below the sector average, meaning the payout remains relatively modest relative to profit growth.
The discount to net asset value may partly reflect the earnings volatility and customer concentration risk characteristic of the specialty semiconductor materials sector.
How this multiple level should be assessed going forward will likely depend on the durability of the earnings recovery and confirmation of results from new investments such as the North American plant.
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 2026-09-04
Revenue and operating profit grew 3.8% and 8.8% year on year respectively in 2025, while net profit surged 53.1%, marking a clear earnings recovery from the 2023 trough. Revenue continued to grow sequentially through Q1 and Q2 2026. The operating margin also improved from 6.3% in 2023 to 17.5% in 2025. Whether this trend continues will need to be confirmed through upcoming quarterly results.
Because high-purity specialty gas requires stable long-term supply once a semiconductor line is running, qualified suppliers are difficult to replace. As a result, revenue tends to grow in stages as customers expand new production lines.
The company has a track record of successfully localizing high-purity specialty gas production, contributing to greater self-sufficiency in Korea's semiconductor and display materials supply chain.
A new specialty gas plant is under construction in Manor, Texas, located roughly 20 miles from Samsung Electronics' Austin and Taylor foundry fabs. A three-phase expansion plan through 2027 is underway, building a supply chain positioned to respond to rising customer production line utilization in the United States. However, the Phase 1 investment amount has not yet been finalized.
Sales to Samsung Electronics reportedly account for roughly 80% of total revenue, meaning results can be significantly affected by changes in that single customer's investment and utilization plans. While customer diversification is underway, dependence on one large semiconductor customer remains high.
As shown by net profit attributable to owners plunging from KRW 57.73bn in 2022 to KRW 13.84bn in 2023, earnings volatility tends to increase during semiconductor industry downturns.
Since specialty gas demand is directly linked to customer utilization rates, a similar earnings decline cannot be ruled out if the industry cycle weakens again.
The operating margin rose to 18.8% in Q4 2025 but eased to 17.8% in Q1 2026 and 15.8% in Q2 2026. Net profit attributable to owners also declined from KRW 14.44bn in Q1 2026 to KRW 13.19bn in Q2 2026, showing a temporary pause in profit improvement even as revenue continued to grow.
The memory semiconductor industry cyclically alternates between upturns and downturns, and a decline in customer utilization rates could negatively affect both specialty gas volumes and pricing. The sharp earnings decline in 2023 illustrates this risk well. Any future inventory adjustments or delays in capacity expansion could slow the pace of earnings recovery.
Given the high revenue exposure to Samsung Electronics, any change in that customer's investment plans or supplier diversification policy could directly affect results. This risk could persist unless new customer acquisition or overseas revenue diversification progresses further.
The Phase 1 investment amount for the Texas plant has not yet been finalized, and the company has stated it plans to apply for local government investment incentives.
Since the subsidy amount can depend on factors such as local hiring plans, there is a possibility that the final investment terms and the completion/operation schedule could change.
Preliminary Q3 2026 (July-September) earnings are expected to be disclosed — worth checking whether revenue and operating margin rebound from the Q2 softening trend.
Worth monitoring whether the Phase 1 investment for the Manor, Texas specialty gas plant is finalized and how the local incentive approval process progresses.
The progress of Phase 2 and Phase 3 expansion at the Texas plant and whether new supply contracts with North American customers such as Samsung Electronics are signed should be monitored continuously.
Announcements from major customers such as Samsung Electronics and SK hynix regarding memory semiconductor utilization rates, along with specialty gas price trends, should be checked alongside each earnings release.
Wonik Materials passed its 2023 earnings trough and showed a joint recovery in revenue, operating profit and net profit through 2024-2025, with revenue growth continuing into the first half of 2026.
However, the operating margin and net profit softened somewhat from Q1 to Q2 2026, indicating the recovery has not been perfectly consistent quarter to quarter.
On the business side, the company's high-purity specialty gas localization capability and structural entry barriers stand out as strengths, alongside a customer structure concentrated toward Samsung Electronics and sensitivity to the semiconductor industry cycle.
The new Texas plant construction could serve as a springboard for expanded supply to North American customers, but the investment amount and incentive terms remain unconfirmed and warrant continued monitoring.
On valuation, the shares trade at a discount to net asset value and the dividend yield runs below the sector average, and how this should be assessed will depend on the durability of the ongoing earnings improvement.
Overall, the company appears to be in an early phase of earnings recovery, with the next quarterly results and progress on the North American investment likely to be key variables in determining the direction ahead.
Report written 2026-09-05 · Data as of 2026-09-04
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