PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩170 per share · Prices as of the 2026-10-02 close
As Fine Circuit expands beyond its appliance-PCB-centric revenue base into AI data center PCBs and dental zirconia, the company has moved from a 2025 annual operating loss to two consecutive quarters of operating profit in the first half of 2026.
2025 revenue was KRW 81.8 billion with an operating loss of KRW 1.5 billion, but the company posted operating profit in both Q1 2026 (KRW 0.2 billion) and Q2 2026 (KRW 1.4 billion).
The dental zirconia subsidiary Uandc International's revenue share has risen to about 22% of consolidated sales.
The company is pursuing entry into the AI data center PCB market while also securing new customers such as Cuckoo and expanding volume with LG Electronics.
The debt ratio eased from 108.0% in 2024 to 88.9% in 2025, and operating cash flow rose from KRW 1.1 billion in 2024 to KRW 2.8 billion in 2025.
Uandc International has a record of a one-month manufacturing suspension order for violating medical device regulations, pointing to regulatory risk in the new business segment.
Founded in 1991, Fine Circuit is a rigid printed circuit board (PCB) manufacturer whose long-standing cash cow has been double-sided and single-sided PCBs used mainly in home appliances such as refrigerators, air conditioners, and washing machines.
Its primary customer is Samsung Electronics, which the company states accounts for the majority of its sales, alongside other customers including LG Electronics, Winia Daewoo, Coway, and Kyungdong Navien.
The company has recently secured new customers such as Cuckoo while also pursuing expanded volume with existing customer LG Electronics.
In 2023, Fine Circuit acquired Uandc International, the domestic market leader in dental zirconia blocks for dental laboratories, entering the dental materials business; this subsidiary's share of consolidated revenue has grown to roughly 22%.
Since 2024, Uandc International has also expanded into distributing general dental materials and manages an export network spanning more than 30 countries through participation in overseas trade shows in Dubai and Germany.
The company's most recent strategic focus is entry into the AI data center PCB market, with management stating it is actively pursuing sales activity to make related revenue visible.
The rigid PCB industry has been characterized as an oligopolistic market built on domestic production's delivery responsiveness even amid low-cost competition from Chinese manufacturers, and Fine Circuit has maintained a stable position within this structure for appliance products.
As a result, Fine Circuit's business is being reorganized around three pillars: appliance-oriented rigid PCBs, dental zirconia, and the newly pursued AI data center PCB segment.
| Quarter | Revenue | Operating profit | Op. margin |
|---|---|---|---|
| 2025Q2 | ₩23.9B | -₩300M | −1.2% |
| 2025Q3 | ₩16.9B | -₩1.1B | −6.7% |
| 2025Q4 | ₩15B | -₩500M | −3.1% |
| 2026Q1 | ₩16.6B | ₩200M | 1.3% |
| 2026Q2 | ₩20.4B | ₩1.4B | 6.9% |
| Year | Revenue | Operating profit | Net income (parent) | Op. margin | ROE | Debt-to-equity |
|---|---|---|---|---|---|---|
| 2022 | ₩64.4B | ₩4.1B | ₩3.6B | 6.4% | 11.5% | 60.0% |
| 2023 | ₩69.2B | ₩4.3B | ₩4.5B | 6.2% | 10.6% | 119.3% |
| 2024 | ₩85.9B | ₩4.5B | ₩4.5B | 5.3% | 9.8% | 108.0% |
| 2025 | ₩81.8B | -₩1.5B | -₩4B | −1.8% | −10.5% | 88.9% |
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
Fine Circuit's revenue rose for three consecutive years, from KRW 64.4 billion in 2022 to KRW 69.2 billion in 2023 and KRW 85.9 billion in 2024, before declining 4.8% to KRW 81.8 billion in 2025 as growth stalled.
The change in profitability was more pronounced: operating profit steadily improved from KRW 4.1 billion in 2022 to KRW 4.3 billion in 2023 and KRW 4.5 billion in 2024, then swung to an operating loss of KRW 1.5 billion in 2025, with net income attributable to owners also flipping from a KRW 4.5 billion profit in 2024 to a KRW 4.0 billion loss in 2025.
The quarterly pattern shows a clear loss phase, with Q3 2025 revenue falling to KRW 16.9 billion and the operating loss widening to KRW 1.1 billion, the largest in the recent window, while the net loss attributable to owners reached KRW 1.9 billion.
The loss narrowed in Q4 2025 to revenue of KRW 15.0 billion and an operating loss of KRW 0.5 billion, before the company returned to quarterly operating profit in Q1 2026 with revenue of KRW 16.6 billion and operating profit of KRW 0.2 billion.
In Q2 2026, revenue rebounded to KRW 20.4 billion and operating profit expanded to KRW 1.4 billion, extending the profitable streak to two consecutive quarters.
On the balance sheet, the debt ratio stayed elevated at 119.3% in 2023 and 108.0% in 2024 before easing to 88.9% in 2025, still above the 60.0% level seen in 2022 but improving from its 2024 peak.
Operating cash flow fell sharply from KRW 11.9 billion in 2023 to KRW 1.1 billion in 2024, then recovered to KRW 2.8 billion in 2025, suggesting cash generation held up relatively better than the swings in reported earnings.
Overall, 2025 was a year in which weaker demand for appliance PCBs combined with early-stage costs from new businesses to sharply erode profitability, while 2026 has shown sequential quarterly improvement consistent with a bottoming pattern.
The domestic single- and double-sided rigid PCB market has long been characterized as an oligopoly maintained by delivery-responsive domestic production despite low-cost competition from Chinese manufacturers.
Fine Circuit's core downstream market, the appliance industry, is sensitive to consumer spending cycles and new product launch timing, and the weak 2025 results appear linked to softer appliance demand.
In the broader PCB industry, however, expanding investment in AI servers and data centers has emerged as a new growth axis, with GPU/ASIC-based AI server investment, switch transitions, and shorter server replacement cycles cited as factors driving demand for high-density PCBs.
Market research estimates put the data center and AI server PCB market at roughly USD 9.71 billion in 2026, growing at a compound annual rate of 5.67% through 2031.
Data center PCBs require high layer counts and high reliability, making them a relatively higher-margin segment, which is part of the rationale behind Fine Circuit's effort to move beyond its low-value-add, appliance-centered structure.
Meanwhile, in the dental zirconia market, subsidiary Uandc International maintains the leading domestic market share and is expanding its overseas sales footprint through an export network spanning more than 30 countries.
Some peers within the broader PCB industry have seen earnings improve on expanded server and memory module volumes, meaning the outcome of Fine Circuit's AI PCB market entry will likely serve as a gauge of its relative position within the industry.
The company has stated plans for capacity expansion in 2026 to address increased appliance-related volume and new customer demand, aligned with recently secured customers such as Cuckoo and efforts to expand volume with LG Electronics.
The AI data center PCB business remains at an early stage without substantial revenue contribution yet, with management stating it is actively pursuing sales activity to make related revenue visible.
On the dental side, Uandc International exhibited new products and zirconia blocks at AEEDC Dubai 2026 in January 2026, building brand recognition in the Middle East through three consecutive years of participation.
Uandc International has also stated plans to attend the IDS trade show in Germany in 2027, the world's largest dental exhibition, aiming to expand its distribution network into Germany and other Western European markets.
Management has indicated that a shift from the low-value-add, appliance-centered structure toward higher-value industries could support earnings improvement if realized.
However, the specific timing and scale of revenue contribution from the new AI PCB entry and capacity expansion have not yet been formally confirmed, warranting monitoring through future quarterly disclosures.
In the near term, whether the two consecutive quarters of operating profit seen in the first half of 2026 continue into the second half is considered the most important point to watch.
Having posted an annual loss in 2025 before returning to quarterly profit in 2026, Fine Circuit's earnings-based valuation metrics can be seen as beginning to reflect the recent quarterly improvement to some degree.
From a price-to-book perspective, the stock trades at a discount to net asset value, a relationship that should be considered alongside the reduction in shareholders' equity caused by the 2025 net loss attributable to owners.
On the dividend side, the company has a history of year-end dividend payments, but given the 2025 loss, whether and how much it continues to pay dividends will depend on future board decisions and earnings trends.
During a phase when net income is transitioning from losses to quarterly profits, earnings volatility is elevated, which warrants caution in interpreting earnings-based multiples such as the price-to-earnings ratio, with the sustainability of future quarterly results being key to the stability of these metrics.
Ultimately, the current valuation can be read as a period where the effects of weak appliance PCB performance and early-stage new-business investment costs coexist with signs of earnings recovery seen in the first half of 2026.
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
Operating losses bottomed at KRW 1.1 billion in Q3 2025, then improved sequentially to a loss of KRW 0.5 billion in Q4, profit of KRW 0.2 billion in Q1 2026, and profit of KRW 1.4 billion in Q2 2026, marking four consecutive quarters of improvement.
Revenue also rebounded from KRW 15.0 billion in Q4 2025 to KRW 20.4 billion in Q2 2026. Whether this sequential improvement continues into the second half is a key question.
The company is pursuing entry into the AI data center PCB market to move beyond its appliance-centered structure, stating it is strengthening sales efforts to make related revenue visible.
Dental zirconia subsidiary Uandc International now accounts for roughly 22% of consolidated revenue, leveraging its leading domestic market share to pursue export growth through overseas trade show participation. Adding more business pillars could reduce dependence on the appliance cycle.
The debt ratio improved from 108.0% in 2024 to 88.9% in 2025. Operating cash flow also rose from KRW 1.1 billion in 2024 to KRW 2.8 billion in 2025, showing relatively resilient cash generation compared with earnings volatility. This suggests financial stability is being managed even amid new-business investment burdens.
2025 revenue fell 4.8% year over year to KRW 81.8 billion, with both operating profit (KRW -1.5 billion) and net income attributable to owners (KRW -4.0 billion) swinging to losses.
This broke a three-year streak of operating profit improvement from 2022 through 2024, with softer appliance demand cited as the main driver.
Fine Circuit states that Samsung Electronics accounts for the majority of its sales, indicating a high concentration on a single customer. While new customer acquisition and expanded LG Electronics volume are underway, these efforts appear to be at an early stage. Changes in the major customer's production or sourcing policies could directly affect results.
Dental zirconia subsidiary Uandc International has a record of a one-month manufacturing suspension order for violating medical device regulations, highlighting regulatory compliance risk in the new business segment.
The AI data center PCB business remains at an early entry stage without substantial revenue yet, and the timing of actual order wins and revenue recognition remains uncertain.
Fine Circuit states that Samsung Electronics accounts for the majority of its sales, indicating high dependence on a single customer. Other major customers include LG Electronics, Winia Daewoo, Coway, and Kyungdong Navien, though their contributions appear comparatively smaller. Changes in the major customer's order volume or sourcing policy could directly affect results.
Uandc International has a record of a one-month manufacturing suspension order for violating medical device regulations, indicating regulatory compliance risk in the new business segment.
Entry into the AI data center PCB market remains at an early stage with uncertain revenue timing, and the specific investment scale and payback period for new capacity expansion have not been formally confirmed.
The core downstream appliance industry is sensitive to consumer spending cycles and new product launch timing, meaning demand fluctuations flow directly into results. The 2025 revenue decline and swing to an operating loss illustrate this sensitivity. Raw material prices and currency fluctuations are additional variables that can affect the cost structure.
This is the statutory filing deadline for the Q3 2026 quarterly report, when it will become possible to check whether the profitable streak seen in the first half of 2026 continued into the third quarter.
It will be worth confirming, through disclosures and IR communications, the progress of the company's stated capacity expansion and whether AI data center PCB-related revenue begins to materialize.
Future disclosures will show how much revenue actually materializes from new customers such as Cuckoo and expanded LG Electronics volume, as well as any change in the share of sales tied to Samsung Electronics.
This will be a point to observe whether Uandc International's planned participation in the world's largest dental trade show translates into visible progress in expanding its European distribution network.
Fine Circuit has long relied on appliance-oriented rigid PCBs as its cash cow, and 2025 was a difficult year in which revenue fell 4.8% amid softer appliance demand while both operating and net losses were recorded.
However, after bottoming in Q3 2025, results improved for four consecutive quarters, with operating profit posted in both Q1 and Q2 2026, alongside improvement in the debt ratio and operating cash flow.
At the same time, the company has grown dental zirconia subsidiary Uandc International's revenue share to about 22% and is pursuing entry into the AI data center PCB market as part of a broader effort to diversify beyond its appliance-centered structure.
That said, factors requiring balanced consideration include the continued high concentration of sales tied to Samsung Electronics, a confirmed regulatory compliance record in the new business segment, and the uncertainty inherent in the early-stage AI PCB business.
Whether future quarterly profitability continues, when capacity expansion and new customer volumes actually translate into revenue, and how regulatory risk in the new business segment is managed will likely be the key variables in gauging the success of this business transition.
Investment decisions should weigh these bullish and bearish factors comprehensively, with readers reaching their own conclusions.
Report written 2026-09-29 · Data as of 2026-09-28
This content is AI analysis of market data and web search results, provided for information only. It is not a solicitation or recommendation to invest. Investment decisions and their consequences are the investor's own responsibility. Data may be delayed or contain errors.