KOSDAQEnergy & Power382900

Bumhan Fuel Cell

₩25,100▼ 1.38%2026-10-02 close

Market Cap

₩218.6B

Turnover

₩1.7B

Volume

70,000 shares

Shares out.

8.8M

PER

—

PBR

0.9×

EPS

-₩405

Dividend Yield

0.00%

PER, EPS, PBR and BPS are calculated in-house from the last 4 quarters (2025Q3–2026Q2) · Dividend yield is based on ₩0 per share · Prices as of the 2026-10-02 close

Report overview

Record Revenue, Widening Losses

Bumhan Fuel Cell continues to expand revenue on the back of its monopoly submarine fuel cell supply and growing liquefied hydrogen station orders, but operating and net losses widened sharply in the first half of 2026, exposing a growing gap between top-line growth and profitability.

1
Sole domestic supplier of submarine fuel cells for the Jangbogo-III program, and pursuing a localization replacement program for Jangbogo-II submarines
2
2025 consolidated revenue rose to KRW 43.4bn year-on-year, but operating profit fell to just KRW 0.86bn
3
Q2 2026 revenue hit a quarterly record of KRW 17.8bn, yet the operating loss widened to KRW 3.2bn and net loss to KRW 3.8bn
4
The liquefied hydrogen refueling station business, more profitable than gas-type stations, has emerged as the key growth driver for 2026
5
Outcomes of overseas submarine projects such as Canada's CPSP and Poland's program remain a key mid-to-long-term earnings variable

Business structure

Bumhan Fuel Cell is a hydrogen fuel cell specialist centered on polymer electrolyte membrane fuel cell (PEMFC) technology, established in 2019 via a spin-off from Bumhan Industrial.

The company built its core technology base by acquiring GS Caltex's military fuel cell business, which GS Caltex had started in 2003, in 2015.

Its operations are organized around three pillars: submarine and marine fuel cells, building and power-generation fuel cells, and hydrogen refueling station construction, with revenue mix on a nine-month cumulative basis through Q3 2025 at 49.9% fuel cells, 27.6% hydrogen stations, and 22.5% other.

The company is the only domestic producer of submarine fuel cells, and globally only Siemens of Germany and Bumhan Fuel Cell are known to have commercialized this technology.

It has exclusively supplied fuel cell modules for the next-generation Jangbogo-III submarine program since 2018, with core customers including Hanwha Ocean, HD Hyundai Heavy Industries, SK E&S, Hyundai Steel, and Samsung Heavy Industries.

It has recently been restructuring its hydrogen station business away from gas-type stations toward liquefied hydrogen stations, working with group affiliates to internalize parts of the value chain including storage tanks.

Through its subsidiary Bumhan Materials, it is pursuing localization of core components such as membrane electrode assemblies (MEA) and electrolyte membranes that had previously relied on imports, with a goal of achieving 100% localization for submarine fuel cell modules. It is also expanding into building-use fuel cells and solid oxide fuel cells (SOFC) as new growth businesses.

Earnings trend

Quarterly revenue · Operating profit

₩7.1B₩200M25Q2₩10.4B₩800M25Q3₩15.5B-₩800M25Q4₩5.1B-₩2.1B26Q1₩17.8B-₩3.2B26Q2

RevenueOperating profit

Annual revenue · Operating profit

₩50.7B₩1.3B2022₩30.5B-₩5.2B2023₩36.2B₩2.4B2024₩43.4B₩900M2025

RevenueOperating profit

Quarterly results · Last 5 quarters
Quarter	Revenue	Operating profit	Op. margin
2025Q2	₩7.1B	₩200M	2.2%
2025Q3	₩10.4B	₩800M	8.1%
2025Q4	₩15.5B	-₩800M	−5.3%
2026Q1	₩5.1B	-₩2.1B	−42.4%
2026Q2	₩17.8B	-₩3.2B	−18.1%

Annual results
Year	Revenue	Operating profit	Net income (parent)	Op. margin	ROE	Debt-to-equity
2022	₩50.7B	₩1.3B	₩2.3B	2.6%	2.1%	21.9%
2023	₩30.5B	-₩5.2B	-₩2.4B	−17.2%	−2.3%	16.8%
2024	₩36.2B	₩2.4B	₩800M	6.7%	0.5%	88.4%
2025	₩43.4B	₩900M	₩1.6B	2.0%	1.0%	116.6%

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

2025 consolidated revenue rose 19.8% year-on-year to KRW 43.4bn from KRW 36.2bn in 2024, but operating profit fell 64.4% to KRW 0.86bn from KRW 2.41bn, with operating margin sliding sharply from 6.7% to 2.0%.

Net income attributable to owners actually increased to KRW 1.59bn from KRW 0.83bn in 2024, moving in the opposite direction from operating profit. 2023 was a loss-making year with revenue of KRW 30.5bn, an operating loss of KRW 5.24bn, and a net loss attributable to owners of KRW 2.38bn, while 2022 was profitable with revenue of KRW 50.7bn, operating profit of KRW 1.31bn, and net income of KRW 2.26bn, underscoring significant volatility over the past four fiscal years.

On a quarterly basis, revenue of KRW 7.06bn, operating profit of KRW 0.16bn, and a net loss to owners of KRW 0.38bn in Q2 2025 improved to revenue of KRW 10.4bn, operating profit of KRW 0.84bn, and net income of KRW 0.34bn in Q3, and revenue grew further to KRW 15.5bn in Q4, where despite an operating loss of KRW 0.82bn the company posted a large net profit of KRW 1.63bn.

However, Q1 2026 revenue plunged to KRW 5.05bn (down 51.6% year-on-year), with an operating loss of KRW 2.15bn and a net loss of KRW 1.65bn, attributed to submarine fuel cell module delivery timing, intensifying competition in the building fuel cell market, and a concentration of hydrogen station orders in the second half.

In Q2 2026, revenue reached a quarterly record of KRW 17.8bn, yet the operating loss widened further to KRW 3.23bn and the net loss to KRW 3.79bn, an unusual pattern of simultaneous revenue growth and deteriorating profitability.

Part of this divergence appears linked to subsidiary Bumhan Materials, which produces the core MEA raw material and had been front-loading production-base setup costs since 2025 ahead of full-scale output in 2026, weighing on consolidated results, even as the parent company's standalone operating margin actually improved from 10.7% (nine-month cumulative through Q3 2024) to 12.8% (nine-month cumulative through Q3 2025).

Overall, the volatility in consolidated results can be interpreted as a combination of a new subsidiary's early-stage investment costs and the overlapping timing of defense and hydrogen-station revenue recognition.

Industry analysis

The Korean government is supporting liquefied hydrogen infrastructure build-out alongside expanding deployment of hydrogen buses and trucks under its hydrogen economy activation policy, and the market continues to shift toward liquefied hydrogen stations, which offer advantages in storage density and refueling speed.

Because liquefied hydrogen stations require cryogenic technology that limits the number of capable builders, contract unit prices are reported to run two to four times higher than for gas-type stations.

Submarine PEMFC fuel cells represent one of the most technically demanding fields, requiring resistance to high-oxygen-concentration, high-pressure, and corrosive conditions, and globally only Siemens of Germany and Bumhan Fuel Cell are considered to have successfully commercialized the technology.

Domestically, the company exclusively supplies the Jangbogo-III submarine program, and having completed defense standardization and cataloging procedures for the nine Jangbogo-II submarines, a path has opened for sequential replacement with domestic products.

Overseas, submarine acquisition projects are underway in multiple countries including Canada's CPSP program (up to 12 vessels), Saudi Arabia, Morocco, Egypt, the Philippines, Colombia, Chile, and Greece, with the overseas expansion of the submarine fuel cell business tied to whether Korean shipbuilders such as Hanwha Ocean and HD Hyundai Heavy Industries win these contracts.

In the building and power-generation fuel cell market, listed peers such as Doosan Fuel Cell (KOSPI) and S-Fuel Cell (KOSDAQ) are considered comparable competitors, and this segment faces relatively more intense competition than the defense business given lower entry barriers.

Outlook

The company has stated it expects orders in 2026 for spare/combat-replacement fuel cell modules for the Jangbogo-III submarine program, localization replacement orders for the Jangbogo-II program, additional liquefied hydrogen station orders, and orders for pure-hydrogen building fuel cell systems.

It has already signed a spare-parts supply contract worth approximately KRW 7.08bn (including VAT) with the Defense Acquisition Program Administration in July for fuel cell modules on the three Jangbogo-III Batch-I submarines (Dosan Ahn Chang-ho, Anmu, and Shin Chae-ho), with the first module scheduled for delivery by July 2028.

Fuel cell modules for the Jangbogo-II submarine program have completed defense standardization and cataloging procedures, laying the groundwork for sequential replacement with domestic products across the nine vessels including the Son Won-il.

In 2025, the company won contracts for the Incheon International Airport liquefied hydrogen station and an eight-station liquefied hydrogen buildout for SK Plug Hyverse, the largest single contract in the company's history, which is expected to feed into revenue recognition from 2026 onward.

Overseas, the outcome of submarine acquisition project selections such as Canada's CPSP remains a key variable for the mid-to-long-term order pipeline, and uncertainty tied to whether Korean shipbuilders win such bids persists, as illustrated by Hanwha Ocean's setback in the Polish submarine competition.

In August, the company unveiled development of Korea's first 10kW cascade SOFC system with 60.8% generation efficiency, signaling a move to expand into civilian power markets such as AI data centers.

The building fuel cell business has completed a design change that reduces costs on its 10kW flagship model by 30-40%, and is reportedly planning to resume sales activity following certification.

Valuation

PER

—

PBR

0.9×

ROE

-2.2%

EPS

-₩405

BPS

₩18,162

Dividend per share

₩0

The company has not paid cash dividends in its recent fiscal years, placing it among stocks whose valuation is driven more by growth expectations than by income appeal.

Some brokerage assessments have noted that the price-to-book ratio trades below the broader KOSDAQ market average, while sitting toward the upper end of the company's own multi-year valuation band.

This is often interpreted as reflecting expectations around potential submarine fuel cell exports and expanding liquefied hydrogen station orders being priced in ahead of recent earnings trends.

Indeed, consolidated results since 2025 have shown a pattern of revenue growth accompanied by deteriorating profitability, and this uncertainty in earnings direction is cited as a factor creating a gap between the growth expectations priced into the stock and near-term results.

Given the sizable swings in annual results—from a profit in 2022 to a loss in 2023, and back to modest profits in 2024-2025—this earnings cycle should be considered alongside any valuation interpretation.

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

Monopoly Submarine Fuel Cell Position and Expanding Defense Pipeline

Bumhan Fuel Cell is the only domestic company and one of a very small number of companies worldwide, alongside Germany's Siemens, that commercializes fuel cells for submarines.

The company holds an exclusive supply contract for the Jangbogo-III class, and through a recently signed spare parts supply contract with the Defense Acquisition Program Administration (DAPA), it has expanded its business scope beyond initial delivery and maintenance to include spare parts.

A foundation has also been laid for a localization replacement project covering nine Jangbogo-II class submarines, meaning that domestic defense revenue alone provides an additional mid- to long-term pipeline.

If overseas projects such as Canada's CPSP materialize, there is additional upside potential through export expansion.

Transition to Higher-Margin Liquefied Hydrogen Stations

The company is shifting its focus from the increasingly competitive gaseous hydrogen refueling station market to liquid hydrogen refueling stations, which have higher entry barriers.

It has won large-scale contracts including Incheon Airport and 8 sites for SK Plug Hyverse, with the SK Plug Hyverse contract being the largest single contract in the company's history.

Liquid hydrogen refueling stations require cryogenic technology, which limits competitors, and contract unit prices are known to be higher than those for gaseous hydrogen refueling stations. As long as the government's hydrogen infrastructure expansion policy continues, there remains room for additional contract wins.

Supply Chain Internalization via Core Component Localization

Through its subsidiary Bumhan Materials, the company is pursuing localization of core components such as MEA and electrolyte membranes that had previously relied on imports, targeting 100% localization of submarine fuel cell modules.

While this involves an initial investment burden, once completed it could secure both supply chain stability and cost competitiveness.

In addition, new business achievements such as the development of a 10kW-class cascade SOFC system continue, indicating that technology diversification is progressing beyond the defense sector.

Bear factors

Recent Losses Widening Despite Revenue Growth

Revenue in Q2 2026 reached a record quarterly high of KRW 17.82 billion, but operating loss expanded to KRW 3.23 billion and net loss to KRW 3.79 billion. In Q1 2026 as well, revenue plunged 51.6% year-over-year, resulting in an operating loss of KRW 2.15 billion.

The recent trend of simultaneous revenue growth and profitability deterioration suggests the need for further examination of the cost structure or project execution methods.

Early-Stage Cost Burden from New Subsidiary

Bumhan Materials, a subsidiary that produces MEA, the key raw material, has not yet generated revenue and is preemptively investing in building production infrastructure, which is burdening consolidated results.

In contrast, the standalone (parent company) operating margin shows an improving trend, indicating a divergence between consolidated and standalone results. Volatility in future consolidated results may continue depending on when this subsidiary begins mass production and its initial yield.

Dependence on Shipbuilders and Uncertainty in Overseas Orders

Overseas expansion of submarine fuel cells is linked to whether domestic shipbuilders such as Hanwha Ocean and HD Hyundai Heavy Industries win contracts. Hanwha Ocean's elimination from the Poland submarine bid is an example of the risk inherent in this linked structure.

While multiple overseas projects, including Canada's CPSP, are underway, it will take time to select the final contractor and the outcome remains uncertain.

Risk factors

Earnings Volatility

Due to the nature of defense projects, the timing of revenue recognition varies significantly depending on the vessel construction progress rate, and hydrogen refueling station orders also tend to be concentrated in the second half of the year, resulting in large quarterly performance fluctuations.

Looking only at annual results from 2022 to 2025, profits and losses alternated repeatedly, and in the first half of 2026, revenue and profit/loss trends also diverged. Such volatility makes it difficult to judge the direction of the business based on short-term performance alone.

New Business Execution Risk

With numerous new businesses such as MEA localization, SOFC development, and liquid hydrogen refueling station expansion proceeding simultaneously, the burden of initial investment and workforce expansion is significant.

If the new subsidiary's mass production is delayed or yields fall short, this could place additional burden on consolidated results. Net working capital requirements are also expected to expand as revenue grows, suggesting the possibility of continued funding pressure.

Policy and Overseas Order Dependence

The hydrogen refueling station business is heavily dependent on the government's hydrogen economy policy and subsidy stance, so changes in policy could affect the pace of order wins.

Overseas expansion of submarine fuel cells is structured to depend on the success of domestic shipbuilders' contract bids and the procurement decisions of various governments, meaning the company is significantly affected by external variables beyond its control.

What to watch next

Around November 2026
The Q3 2026 earnings release should show whether the operating losses that widened in Q2 begin to improve and whether liquefied hydrogen station revenue recognition ramps up in earnest.
Second half of 2026
Whether the Jangbogo-II submarine fuel cell module localization program converts into an actual order, and the scale and timing of any contract, should be monitored.
Within 2026
Progress on Canada's CPSP submarine project, including any preferred bidder selection, should be tracked, as a win by the Korean consortium could be a turning point for overseas expansion of the submarine fuel cell business.
By July 2028
Delivery progress on the spare-parts supply contract signed with the Defense Acquisition Program Administration for Jangbogo-III submarine fuel cell modules should be checked.
Following certification completion
The resumption of sales activity and actual order performance for the redesigned 10kW building fuel cell model, which achieved a 30-40% cost reduction, should be confirmed.

Overall view

Bumhan Fuel Cell holds a rare position as Korea's sole supplier of submarine fuel cells while simultaneously building a new growth pillar in liquefied hydrogen stations.

Revenue grew steadily through 2025, yet operating margin actually declined, and in the first half of 2026 the company experienced an unusual phase of simultaneous revenue records and widening losses.

This divergence appears to reflect a combination of factors, including early-stage investment costs at a subsidiary pursuing MEA localization and differing timing in the recognition of defense and hydrogen-station revenue, making the timing of any earnings normalization an important point to watch.

Domestic replacement demand for submarine fuel cells, overseas export projects, and additional liquefied hydrogen station orders support the mid-to-long-term growth narrative, but numerous variables requiring confirmation remain, including whether shipbuilders win overseas contracts and whether the new subsidiary stabilizes production.

With no dividend in place, the stock's valuation appears to be shaped by the tension between growth expectations and the actual pace of earnings realization. Investors should continue to monitor upcoming quarterly results and domestic and overseas order events to see whether this gap narrows.

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.