KOSDAQOthers023600

Sambo Corrugated Board

₩8,980▼ 0.55%2026-10-02 close

Market Cap

₩143.8B

Turnover

₩100M

Volume

10,000 shares

Shares out.

16M

PER

5.0×

PBR

0.2×

EPS

₩1,915

Dividend Yield

2.21%

PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩210 per share · Prices as of the 2026-10-02 close

Report overview

Vertical Integration Cushions Profit as Margins Slide for Fourth Year

Sambo Corrugated Board has kept annual operating profitability positive through vertical integration with paper-making subsidiaries even as the broader corrugated packaging industry struggled, but its operating margin has declined for four consecutive years since 2022.

1
2025 consolidated revenue was KRW 539.9 billion and operating profit was KRW 29.9 billion (operating margin 5.5%), down 3.3% and 22.8% year-on-year respectively.
2
The operating margin fell for four straight years, from 11.6% in 2022 and 12.1% in 2023 to 6.9% in 2024 and 5.5% in 2025.
3
Operating profit in Q2 2026 rebounded sharply to KRW 16.5 billion, up from KRW 5.3 billion in the prior quarter and KRW 9.7 billion a year earlier.
4
Industry analysis has pointed to the company's vertically integrated structure, including paper-making subsidiaries, as a factor behind its lower cost-of-sales ratio versus peers.
5
On a standalone (non-consolidated) basis, the company posted an operating loss and a net loss in 2025, revealing a gap between consolidated and standalone results.

Business structure

Founded in 1973, Sambo Corrugated Board manufactures and sells corrugated board and corrugated boxes, and listed on KOSDAQ in 1996.

Its core products are corrugated sheets and boxes used for outer packaging of manufactured goods, food, pharmaceuticals, and agricultural and marine products, while affiliated companies produce liner paper and medium paper used to make corrugated board.

In 2005 the company acquired a stake in Koryo Paper, bringing a raw-paper subsidiary in-house and establishing a vertically integrated chain from raw paper to sheet to box.

It subsequently made Dongjin Panji, Hancheong Panji, and Samhwa Panji wholly owned subsidiaries, expanding its regional sales network and production capacity.

Korea's corrugated market is an oligopoly in which the top five players—Global SAE-A Group, Asia Paper, Shindaeyang Paper, Sambo Corrugated Board, and Korea Export Packaging—together hold roughly 70-80% share, alongside more than 2,700 small-scale converters.

Within this group, Sambo stands out for cost competitiveness; one analysis found it was the only company among the top five with a cost-of-sales ratio in the 70% range as of mid-2024.

According to FnGuide company data, corrugated sheet and box sales account for close to 70% of total revenue, making the converted/finished-product segment larger than the raw-paper segment.

On governance, ownership is concentrated, with CEO Ryu Jin-ho and related parties together holding roughly the mid-60% range of shares.

Earnings trend

Quarterly revenue · Operating profit

₩135.4B₩9.7B25Q2₩144.1B₩6.6B25Q3₩132.5B₩6.5B25Q4₩131.1B₩5.3B26Q1₩153.5B₩16.5B26Q2

RevenueOperating profit

Annual revenue · Operating profit

₩582B₩67.6B2022₩555.6B₩67.4B2023₩558.3B₩38.7B2024₩539.9B₩29.9B2025

RevenueOperating profit

Quarterly results · Last 5 quarters
Quarter	Revenue	Operating profit	Op. margin
2025Q2	₩135.4B	₩9.7B	7.2%
2025Q3	₩144.1B	₩6.6B	4.6%
2025Q4	₩132.5B	₩6.5B	4.9%
2026Q1	₩131.1B	₩5.3B	4.1%
2026Q2	₩153.5B	₩16.5B	10.8%

Annual results
Year	Revenue	Operating profit	Net income (parent)	Op. margin	ROE	Debt-to-equity
2022	₩582B	₩67.6B	₩56.2B	11.6%	11.2%	27.6%
2023	₩555.6B	₩67.4B	₩53.5B	12.1%	9.7%	25.0%
2024	₩558.3B	₩38.7B	₩32.5B	6.9%	5.7%	27.5%
2025	₩539.9B	₩29.9B	₩27B	5.5%	4.5%	28.3%

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

Earnings analysis

Consolidated revenue moved from KRW 582.0 billion in 2022 to KRW 555.6 billion in 2023, KRW 558.3 billion in 2024, and KRW 539.9 billion in 2025, staying in a roughly KRW 540-580 billion range for four straight years.

The operating margin held in double digits at 11.6% in 2022 and 12.1% in 2023, then fell sharply to 6.9% in 2024 and 5.5% in 2025, marking four consecutive years of margin compression.

Net income attributable to owners also declined, from KRW 56.2 billion in 2022 to KRW 53.5 billion in 2023, KRW 32.5 billion in 2024, and KRW 27.0 billion in 2025.

On a quarterly basis, operating profit fell from KRW 9.7 billion in Q2 2025 to KRW 6.6 billion in Q3, KRW 6.5 billion in Q4, and KRW 5.3 billion in Q1 2026, before rebounding sharply to KRW 16.5 billion in Q2 2026.

That Q2 2026 result—revenue of KRW 153.5 billion (up about 13.3% year-on-year) and operating profit of KRW 16.5 billion (up roughly 70% year-on-year)—was noted by one outlet as reflecting a clear performance gap between companies with raw-paper subsidiaries and those that only convert purchased paper.

Around the same period, competitor Taerim Packaging posted a standalone operating loss, and an industry source described conditions across the corrugated sector as difficult given the economy.

Separately, on a standalone basis the parent entity alone recorded 2025 revenue of KRW 208.3 billion alongside an operating loss of KRW 4.5 billion and a net loss of KRW 2.1 billion, confirming a gap between standalone and consolidated results.

This suggests that profits from raw-paper subsidiaries are supporting consolidated earnings, while the parent's own box/sheet conversion business appears relatively more exposed to raw material cost pressure and delayed price pass-through.

Industry analysis

Downstream demand is seen continuing a gradual expansion, supported by e-commerce growth and logistics standardization.

One market research firm projected the global corrugated board packaging market would grow from USD 198.2 billion in 2025 to USD 205.96 billion in 2026, expanding at a compound annual growth rate of 3.92% from 2026 to 2034.

This growth has been attributed to substitution demand from tightening plastic packaging regulations in the United States and Europe, as well as industrial users shifting from wooden crates to corrugated board.

Domestically, however, the sector passed through a period of deteriorating profitability after 2024, as rising waste-paper costs coincided with delayed pass-through into final box prices.

Large buyers hold pricing power, and it has been noted that smaller converters in particular have struggled to get cost increases reflected in prices.

As a result, Taerim Packaging, Yujin Panji, and Korea Export Packaging Industry all posted operating losses in a recent fiscal year, and Daeyoung Packaging was designated an administrative issue due to prolonged share-price weakness.

Sambo Corrugated Board, supported by vertical integration through its paper-making subsidiaries and a relatively low cost-of-sales ratio, maintained annual operating profitability through this downturn, differentiating its business structure from peers focused mainly on conversion.

Outlook

No separate company revenue or profit guidance has been identified. That said, the sharp quarter-on-quarter improvement in Q2 2026 results can be read as reflecting a combination of factors, such as higher shipment volumes entering the peak season and changes in raw material cost conditions.

Market research firms point to e-commerce expansion and rising demand for plastic-substitute packaging as mid- to long-term growth drivers for the corrugated industry, alongside a continuing shift by industrial users from wood and plastic crates to corrugated board.

On the other hand, waste-paper and pulp prices, the key raw materials for corrugated paper, remain volatile with global market conditions and exchange rates, leaving procurement stability and cost management as variables that will continue to shape results.

On governance, at the March 2026 annual general meeting, all agenda items—including the 2025 year-end dividend of KRW 210 per share with a dividend yield of 2.1%—were approved, and inside director Ryu Kyung-ho and outside director Lim Dae-hyuk were reappointed, keeping the existing management team in place.

Whether industry-wide oversupply eases and how competitors' restructuring proceeds remain variables that could affect Sambo's relative standing.

Valuation

PER

5.0×

PBR

0.2×

ROE

5.1%

EPS

₩1,915

BPS

₩38,523

Dividend per share

₩210

Sambo Corrugated Board's net income declined from the roughly KRW 50-56 billion range in 2022-2023 to around KRW 30 billion in 2024-2025, an ongoing profit-contraction trend.

The stock has tended to trade at a discount to net asset value, broadly in line with the valuation levels typically seen across Korea's corrugated packaging sector. Dividends have continued to be paid annually, mainly as a year-end distribution, with no major recent change in dividend policy observed.

Compared with periods of larger profits in the past, recent profitability metrics are lower, and how this profit contraction is reflected in the valuation multiple the market assigns may depend on whether earnings recover going forward. These comparisons are factual observations based on confirmed financial figures, not value judgments.

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

Bull factors

Cost resilience from vertically integrated raw-paper supply

Sambo Corrugated Board has brought raw-paper producers such as Koryo Paper in-house, creating a vertically integrated chain from raw paper to sheet to box.

This structure has been cited as contributing to the company being the only one among the top five industry players with a cost-of-sales ratio in the 70% range as of mid-2024.

Unlike competitors that purchase raw paper externally and only convert it, this structure can provide a relative edge in raw-material sourcing stability and cost control.

Continued annual profitability amid an industry-wide downturn

While competitors such as Taerim Packaging, Yujin Corrugated, and Korea Export Packaging recorded operating losses in their most recent fiscal year, Samboh Panji posted operating profit and net profit every year on a consolidated basis from 2022 to 2025.

Operating profit in Q2 2026 was KRW 16.5 billion, showing clear improvement both quarter-on-quarter and year-on-year. The fact that its profit trend was maintained amid an industry-wide deterioration in profitability highlights a difference in business structure compared to competitors.

Dividend continuity underpinned by concentrated ownership

The stake held by special related parties, including the largest shareholder and CEO Ryu Jin-ho, reaches the mid-60% range, indicating a relatively stable governance structure.

The company decided on a year-end 2025 dividend of KRW 210 per share, a dividend yield of 2.1%, and this agenda item was approved at the regular shareholders' meeting in March 2026. The high level of owner control is a factor worth noting in terms of consistency in shareholder return policy.

Bear factors

Four straight years of declining operating margin

The operating margin, which stood at 11.6% in 2022 and 12.1% in 2023, fell markedly to 6.9% in 2024 and 5.5% in 2025. Revenue remained stagnant at around KRW 540-580 billion during the same period, meaning that top-line growth failed to offset the margin decline.

Net profit attributable to controlling shareholders also fell by more than half, from KRW 56.2 billion in 2022 to KRW 27.0 billion in 2025.

Structural lag in passing raw material costs through to prices

Since corrugated box prices are largely determined by large demand-side companies, it has repeatedly been pointed out that it is difficult to immediately reflect rising raw material (waste paper and pulp) prices in selling prices.

This structure represents an industry-wide risk applicable to corrugated processors in general, including Samboh Panji. As raw material price volatility increases, margin pressure is likely to recur.

Weaker standalone (non-consolidated) results

On a standalone basis in 2025, the company recorded revenue of KRW 208.3 billion, an operating loss of KRW 4.5 billion, and a net loss of KRW 2.1 billion.

The fact that consolidated results remained profitable is interpreted as being due to the profits of subsidiaries engaged in linerboard production offsetting the loss. Looking solely at the parent company's box and paperboard processing business, this shows that profitability has weakened.

Risk factors

Raw material price volatility

Prices of waste paper and imported pulp, the main raw materials for corrugated linerboard, fluctuate significantly depending on international market conditions and exchange rates.

While rising linerboard prices tend to push up corrugated paperboard and box prices accordingly, the timing of this pass-through can be delayed due to differences in bargaining power with large demand-side companies.

Such delays have repeatedly been cited in the past as a factor behind industry-wide profitability deterioration.

Demand slowdown and competitive intensity

If growth in the e-commerce market slows or an economic downturn occurs, demand for corrugated products itself could contract due to reduced shipment volumes. With more than 2,700 small-scale processors crowding the market, there remains a possibility of intensified price competition. As competitors undergo restructuring, temporary oversupply or price disruption could also emerge.

Governance and related-party transaction risk

The stake held by the largest shareholder and special related parties reaches the mid-60% range, reflecting an extremely high level of owner control.

The company has a history of significant related-party transactions with owner family-owned private companies such as Daelim Paper, but it is understood that some of these special relationships were dissolved around 2018.

Nevertheless, the structure and transparency of transactions among affiliated companies remain a matter requiring continued observation.

What to watch next

Mid-November 2026
Check the Q3 2026 (July-September) consolidated earnings disclosure to assess whether the Q2 profit rebound was a one-off or the start of a margin recovery.
Q4 2026
Monitor waste-paper and raw-paper price trends published by relevant government and industry data sources, along with any raw-paper price negotiation outcomes from the industry cooperative, to track changes in cost pressure.
Second half of 2026 through early 2027
Track the restructuring progress of loss-making or administratively designated peers such as Taerim Packaging and Daeyoung Packaging to assess whether industry oversupply eases and how Sambo's relative position evolves.
Around February 2027
Check the FY2026 full-year earnings and year-end dividend decision disclosure to see whether the per-share dividend and policy remain at prior levels (KRW 210 per share for FY2025).

Overall view

Backed by a vertically integrated structure with raw-paper-producing subsidiaries, Sambo Corrugated Board maintained annual consolidated operating profit and net income every year from 2022 through 2025, even as peers such as Taerim Packaging and Daeyoung Packaging suffered operating losses or administrative-issue designations amid a broader industry downturn.

Even so, the operating margin fell for four consecutive years, from 11.6% in 2022 to 5.5% in 2025, and net income attributable to owners more than halved over the same period.

The sharp rebound in Q2 2026 operating profit versus the prior quarter is notable, but whether it marks a sustained recovery will need to be confirmed by subsequent quarterly results.

On a standalone basis, the parent posted an operating loss in 2025, confirming that support for consolidated results has come largely from raw-paper subsidiaries.

A governance structure with roughly mid-60% ownership concentrated in the founding family, alongside a consistent annual year-end dividend, points to a stable shareholder-return track record.

Overall, the company sits at an intersection of structural industry risks—delayed cost pass-through and a fragmented field of small converters—and its own cost competitiveness, with the future earnings trajectory likely to hinge on raw material price trends and the pace at which industry oversupply is resolved.

Sources

Korea Exchange (KRX) — Prices · Market Cap · Volume
FSS electronic disclosure system (DART) — Financial statements · Dividend filings

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Report written 2026-09-05 · Data as of 2026-09-04

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.