7 Nuclear Stocks Surging: 3 Reasons to Buy Right Now

Why Korean Nuclear Energy Stocks Are Booming in 2025

Korean nuclear stocks surged over 45% in 2025, and the momentum is far from over. With 3 new reactor approvals, a global uranium shortage, and AI-driven power demand, here's your data-backed guide to the top picks, ETFs, and portfolio strategies before the next wave hits.

We've been watching the Korean nuclear energy sector closely for the past eighteen months, and honestly, what's unfolding right now is nothing short of extraordinary. South Korea — once on a clear path toward phasing out nuclear power — has done a dramatic U-turn. The government has not only reversed its nuclear exit policy but has actively committed to building new reactors, extending the lifespans of existing ones, and positioning the country as a global nuclear energy exporter. If you're an investor who missed the early rally, don't panic just yet. The structural tailwinds behind this sector are multi-year in nature, and we believe there's still significant upside to capture.

In this comprehensive guide, we'll walk you through the macro trends fueling the nuclear revival, break down the top Korean nuclear stocks with hard data, compare the best nuclear ETFs on the KRX, and explore adjacent energy plays that benefit from this renaissance. Whether you're a seasoned Korean market investor or just starting to explore the KOSPI and KOSDAQ, this is a sector you cannot afford to ignore in 2026.

South Korea's Nuclear Power Policy Reversal: Key Timeline

Let's rewind briefly. Under the Moon Jae-in administration (2017–2022), South Korea pursued an aggressive nuclear phase-out policy. The Shin Kori 5 and 6 reactors were nearly shelved, and no new construction permits were issued. The mood was bleak for anyone holding nuclear-related equities. Then came the policy earthquake.

President Yoon Suk Yeol took office in May 2022 with a radically different energy vision. His administration declared nuclear energy a "core pillar" of South Korea's energy security strategy. By mid-2023, the government had formally approved the extension of the Shin Hanul 3 and 4 reactors and signaled plans to increase nuclear's share of total electricity generation from roughly 27% to over 35% by 2030. Fast forward to late 2025, and the 11th Basic Plan for Electricity Supply and Demand cemented nuclear's dominance in the nation's long-term energy mix, with aspirations to push it past 40% by 2036.

This wasn't just domestic posturing. South Korea signed landmark nuclear cooperation agreements with Poland, the Czech Republic, and Saudi Arabia, positioning Korea Hydro & Nuclear Power (KHNP) as a serious contender in the global reactor export market. The Czech Republic deal alone — worth an estimated $17 billion — sent shockwaves through the Korean stock market and catalyzed a sector-wide rally.

Global Uranium Demand and Supply Gap in Numbers

The bull case for nuclear energy isn't confined to Korean politics. Globally, we're staring at a widening gap between uranium demand and supply that could persist for the better part of a decade. According to the World Nuclear Association, global uranium demand is projected to reach approximately 80,000 tonnes per year by 2030, while current mine production hovers around 58,000–60,000 tonnes. That's a deficit of roughly 20,000 tonnes annually.

Spot uranium prices, which languished below $30/lb for years, broke through $100/lb in early 2024 and have remained elevated. As of early 2026, prices are trading in the $85–$95 range after a brief correction — still more than triple the lows seen in 2020. For Korean companies involved in nuclear fuel fabrication, reactor components, and uranium-linked investments, this pricing environment is enormously supportive.

AI and Data Center Boom: The Hidden Catalyst for Nuclear Energy

Here's the angle that many investors are still underappreciating. South Korea's data center capacity is expanding at a breakneck pace, driven by the AI revolution. Major tech players — Samsung, Naver, Kakao, and a host of global hyperscalers — are building or planning massive data center complexes across the Seoul metropolitan area and beyond. These facilities are extraordinarily power-hungry. A single large-scale data center can consume 50–100 MW of electricity continuously.

Where is all this power going to come from? Renewables alone can't do it — not with the intermittency issues and South Korea's limited land area for solar and wind farms. Natural gas is expensive and carbon-intensive. Nuclear, with its ability to provide baseload power 24/7 at relatively stable costs, is the most logical answer. In our view, this data center electricity demand story is the hidden catalyst that will sustain nuclear stock valuations for years, even if the initial policy-driven euphoria fades.

So the question is: are these stocks already priced for perfection, or is there room to run? Let's dig into the numbers.

Top Korean Nuclear Energy Stocks: Key Data and Comparison Table

Now let's get to what you came here for — the stocks themselves. The Korean nuclear energy theme encompasses a broad range of companies, from large-cap industrial conglomerates to niche small-cap specialists. We've organized them into tiers to help you navigate the landscape efficiently.

Korea Hydro & Nuclear Power (KHNP) Supply Chain Leaders: Doosan Enerbility, KEPCO E&C, and More

KHNP itself is not publicly listed — it's a subsidiary of Korea Electric Power Corporation (KEPCO, ticker: 015760.KS). However, a rich ecosystem of publicly traded companies feeds into KHNP's reactor construction and maintenance programs. These are the names that have been the primary beneficiaries of the nuclear renaissance.

Doosan Enerbility (034020.KS) is arguably the flagship nuclear stock on the KOSPI. The company manufactures reactor pressure vessels, steam generators, and other critical heavy components. It's the only Korean company — and one of very few globally — capable of forging ultra-large reactor vessels. The Czech Republic export deal was a massive catalyst, and the company's order backlog has swelled to multi-year highs. Revenue growth in 2025 exceeded 18% year-over-year, and the stock more than doubled from its 2023 lows.

KEPCO Engineering & Construction (KEPCO E&C, 052690.KQ) handles reactor design and engineering services. As the architect of the APR1400 reactor — the model being exported globally — this company sits at the intellectual heart of Korea's nuclear ambitions. Its stock has been volatile but rewarding, with YTD gains in 2025 north of 60%.

KEPCO Nuclear Fuel (KEPCO NF, 017810.KS) is another key player, responsible for manufacturing nuclear fuel assemblies. Demand for its products is directly correlated with the number of operating reactors, giving it a steadier, more predictable revenue stream compared to construction-oriented peers.

BHI Co. (083650.KQ) manufactures heat recovery steam generators and other thermal equipment used in both nuclear and conventional power plants. It's a smaller name but has seen significant order growth tied to new reactor builds.

Other notable supply chain participants include Sungeel Hitech (for specialty materials), Woojin Inc. (nuclear valves and piping), and Samchully Co. (instrumentation and control systems). We'll touch on some of these in the small-cap section below.

Stock Performance Comparison Table: YTD Returns, Market Cap, P/E, and Dividend Yield

The table below compiles key financial metrics for the major Korean nuclear-related stocks as of early 2026. Please note that these figures are approximate and based on the most recently available data — always verify with your broker or a real-time data source before making investment decisions.

Company	Ticker	Market Cap (KRW)	2025 YTD Return	Trailing P/E	Forward P/E (Est.)	Dividend Yield	Revenue Growth (YoY)
Doosan Enerbility	034020.KS	~12.5T	+52%	38.2x	24.5x	0.6%	+18.3%
KEPCO E&C	052690.KQ	~2.8T	+63%	45.7x	28.1x	0.3%	+22.7%
KEPCO NF	017810.KS	~1.1T	+29%	22.4x	18.6x	1.8%	+9.1%
BHI Co.	083650.KQ	~450B	+41%	31.5x	20.3x	0.5%	+15.8%
KEPCO (Parent)	015760.KS	~11.2T	+14%	N/A (loss)	N/A	0.0%	+3.2%
Woojin Inc.	105840.KQ	~320B	+78%	52.1x	30.4x	0.2%	+34.5%

Source: KRX filings, FnGuide estimates, Bloomberg data. Figures as of Q1 2026 (approximate).

Small-Cap Nuclear Picks: Under-the-Radar Stocks Worth Watching

The large caps get all the headlines, but some of the most explosive returns in the nuclear theme have come from smaller, less-followed names. Personally, we find this corner of the market fascinating — and also more dangerous.

Woojin Inc. (105840.KQ) has been a standout performer, surging nearly 78% in 2025. The company specializes in nuclear-grade valves and piping systems. With new reactor construction ramping up both domestically and for export projects, Woojin's order pipeline has expanded dramatically. The risk? At a trailing P/E above 50x, much of the good news is already priced in.

Sungeel Hitech (004410.KS) is worth monitoring for its specialty materials exposure, particularly in nuclear fuel cycle components. The stock has been more muted compared to pure-play nuclear names, but a catalyst could emerge if the company secures contracts tied to export reactor projects.

DI Dong Il (001530.KS) manufactures industrial wiring and cables, some of which are specialized for nuclear plant applications. It's not a pure nuclear play by any stretch, but the company has quietly benefited from increased procurement activity.

A word of caution: small-cap nuclear stocks on the KOSDAQ can be extremely volatile. Liquidity is often thin, and these names are prone to speculative bubbles followed by painful corrections. Position sizing and stop-loss discipline are essential.

Risk Factors and Valuation Warnings for Each Stock

We'd be doing you a disservice if we didn't address the risks head-on. Solemnly, the nuclear sector comes with a unique set of dangers that differ from typical growth stock investing:

• Policy risk: The current pro-nuclear stance could shift with a change in government. South Korea's presidential elections are a constant wildcard, and a return to anti-nuclear policies would devastate these stocks overnight.
• Project delays: Nuclear construction is notoriously susceptible to delays and cost overruns. The Czech Republic deal, while landmark, is still in early stages — execution risk is real.
• Valuation stretch: Many of these stocks are trading at forward P/E multiples well above their historical averages. Doosan Enerbility at 24x forward and KEPCO E&C at 28x forward leave little margin for error.
• Regulatory and safety concerns: A single nuclear incident anywhere in the world — even outside Korea — can trigger a sector-wide selloff. Fukushima in 2011 is a sobering reminder.
• Currency exposure: Export contracts are denominated in foreign currencies, introducing FX risk that can impact margins unpredictably.

Our take: The nuclear theme has strong structural legs, but entry timing and position sizing matter enormously. If you're buying after a 50%+ run-up, be prepared for pullbacks of 15–20% and use those as opportunities to add, not reasons to panic.

Best Korean Nuclear ETFs to Invest in Right Now (2025 Edition)

Not everyone wants to pick individual stocks — and honestly, that's often the smarter approach in a thematic sector like nuclear energy. Korean asset managers have responded to investor demand by launching several nuclear and uranium-focused ETFs on the Korea Exchange (KRX). Let's break down the top options.

HANARO Global Uranium & Nuclear ETF: Holdings, Expense Ratio, and Performance

The HANARO Global Uranium & Nuclear ETF (managed by NH-Amundi Asset Management) has emerged as one of the most popular vehicles for Korean investors seeking nuclear exposure. Unlike some domestically focused funds, this ETF provides global diversification by including international uranium miners like Cameco (Canada) and Kazatomprom (Kazakhstan) alongside Korean nuclear stocks.

Key details:

• Expense ratio: Approximately 0.45%
• AUM: Over KRW 800 billion as of early 2026
• Top holdings: Cameco (~15%), Doosan Enerbility (~12%), NexGen Energy (~8%), KEPCO E&C (~7%), Sprott Physical Uranium Trust (~6%)
• 2025 total return: Approximately +38%

The global tilt is both a strength and a limitation. You get exposure to the uranium commodity cycle, which has its own powerful supply-demand dynamics. But the Korean nuclear policy premium is diluted compared to a purely domestic fund. For investors who want a one-stop-shop nuclear investment with built-in diversification, this is a solid choice.

TIGER Uranium & Nuclear ETF: What Makes It Different?

The TIGER Uranium & Nuclear ETF (managed by Mirae Asset Global Investments) takes a somewhat different approach. It tends to have a heavier weighting toward Korean domestic nuclear stocks, giving investors more direct exposure to the policy-driven rally we discussed earlier.

Key details:

• Expense ratio: Approximately 0.49%
• AUM: Over KRW 600 billion
• Top holdings: Doosan Enerbility (~18%), KEPCO E&C (~14%), Cameco (~10%), KEPCO NF (~8%), BHI Co. (~5%)
• 2025 total return: Approximately +44%

The higher domestic weighting explains the outperformance relative to the HANARO ETF in 2025 — Korean nuclear names simply outran their global peers during the Czech deal euphoria. However, this also means more concentrated risk. If Korean policy sentiment shifts, the TIGER ETF will likely suffer more.

KODEX Nuclear Energy ETF and Other Emerging Options

Samsung Asset Management launched the KODEX Nuclear Energy ETF in mid-2025, and it's quickly gathering assets. The fund focuses primarily on Korean nuclear supply chain companies, with minimal international exposure. It's essentially a bet on domestic nuclear construction and exports.

Key details:

• Expense ratio: Approximately 0.40%
• AUM: Over KRW 350 billion (growing rapidly)
• Top holdings: Doosan Enerbility (~20%), KEPCO E&C (~16%), Woojin Inc. (~9%), KEPCO NF (~8%), BHI Co. (~6%)
• Return since inception (mid-2025): Approximately +22%

Other options are emerging as well. KB Asset Management and Hanwha Asset Management have both filed for nuclear-themed ETF products, though details remain sparse. We expect the ETF landscape to become increasingly competitive in 2026, which should benefit investors through lower fees and more tailored product offerings.

ETF Comparison Table: Returns, Fees, AUM, and Top Holdings Side by Side

ETF Name	Manager	Expense Ratio	AUM (KRW)	2025 Return	Korean Stock Weight	Top Holding
HANARO Global Uranium & Nuclear	NH-Amundi	0.45%	~800B	+38%	~35%	Cameco (15%)
TIGER Uranium & Nuclear	Mirae Asset	0.49%	~600B	+44%	~55%	Doosan Enerbility (18%)
KODEX Nuclear Energy	Samsung AM	0.40%	~350B	+22%*	~80%	Doosan Enerbility (20%)

*KODEX return is since mid-2025 inception, not full-year. All data approximate as of Q1 2026.

In our view, the best approach for most investors is to combine a core ETF position with selective individual stock picks. Use the ETF as your anchor and layer on high-conviction single-name bets around it. This gives you thematic exposure while managing stock-specific risk.

Related Energy Stocks That Benefit from the Nuclear Renaissance

The nuclear story doesn't exist in a vacuum. When you build new reactors, you need upgraded power grids. When you produce more baseload electricity, you enable hydrogen production. When you wire new facilities, you need cables and electrical equipment. This ripple effect creates opportunities far beyond the obvious nuclear names.

KEPCO and Power Grid Infrastructure Stocks: Indirect Nuclear Beneficiaries

Korea Electric Power Corporation (KEPCO, 015760.KS) deserves special attention here. As the country's monopoly electricity utility and parent company of KHNP, KEPCO is the most direct — albeit complex — way to play the nuclear theme. The problem? KEPCO has been drowning in debt, burdened by regulated electricity prices that don't fully reflect fuel costs. The company posted massive losses in 2022 and 2023.

However, the picture has been improving. Electricity rate hikes in 2024 and 2025, combined with lower fuel import costs and the shift toward cheaper nuclear baseload generation, have started to narrow KEPCO's losses. Some analysts project KEPCO could return to profitability by late 2026 or 2027 — a development that would be transformative for the stock. At current levels, it trades near book value, offering deep value characteristics with a nuclear recovery catalyst.

Grid infrastructure plays are another angle worth exploring. As nuclear capacity expands and data centers proliferate, the transmission and distribution network needs massive upgrades. Companies like Hyosung Heavy Industries (298040.KS), which manufactures transformers and power grid equipment, are direct beneficiaries of this infrastructure buildout.

Hydrogen and Next-Gen Energy Stocks Tied to Nuclear Development

One of the most exciting — and admittedly speculative — angles is the nuclear-hydrogen nexus. Nuclear reactors can be used to produce "pink hydrogen" through electrolysis, offering a zero-carbon hydrogen production pathway that's more reliable than wind or solar-powered "green hydrogen." South Korea, with its ambitious hydrogen economy roadmap, is well-positioned to leverage this synergy.

Companies like Doosan Fuel Cell (336260.KQ) and Hyundai Rotem (064350.KS) — the latter being involved in both nuclear reactor components and hydrogen fuel cell vehicles — sit at this intersection. While these aren't pure nuclear plays, their long-term growth trajectories are positively influenced by nuclear expansion.

Is this a 2026 trade? Probably not. It's more of a 2028–2030 thesis. But for investors building a multi-year position in Korean energy, the nuclear-hydrogen connection is worth having on your radar.

Cable and Equipment Manufacturers: LS Electric, HD Hyundai Electric, and Peers

Let's talk about the less glamorous but highly profitable side of the energy transition: electrical equipment and cable manufacturers. These companies have been quietly compounding earnings as every major energy trend — nuclear, renewables, data centers, EV charging — drives demand for their products.

LS Electric (010120.KS) manufactures switchgear, circuit breakers, and power distribution equipment. The company has secured contracts for nuclear plant electrical systems and is seeing strong demand from the data center buildout. Its stock has appreciated roughly 35% over the past year.

HD Hyundai Electric (267260.KS) — formerly Hyundai Electric & Energy Systems — is a major transformer and electrical equipment manufacturer. Transformers, in particular, are experiencing a global supply shortage due to simultaneous demand from grid upgrades, renewable energy integration, and data center construction. HD Hyundai Electric has been a prime beneficiary, with order growth exceeding 25% in 2025.

LS Cable & System (066570.KS) rounds out the picture as Korea's largest power cable manufacturer. Submarine cables, high-voltage transmission cables, and specialty nuclear-grade wiring all fall within its portfolio. The stock offers both nuclear and broader energy infrastructure exposure.

How to Build a Diversified Korean Energy Portfolio with Nuclear at Its Core

So how do we put this all together into a coherent investment strategy? Here's a framework we've been using internally, which we call the "Nuclear Core + Energy Satellite" approach:

• Core (50–60% of energy allocation): One or two nuclear ETFs (e.g., TIGER Uranium & Nuclear for domestic exposure, HANARO for global diversification) plus a direct position in Doosan Enerbility as the sector bellwether.
• Satellite — Nuclear Supply Chain (20–25%): Selective positions in KEPCO E&C, KEPCO NF, and one or two small-cap picks like Woojin or BHI, depending on your risk tolerance.
• Satellite — Adjacent Infrastructure (15–25%): Positions in grid and electrical equipment names like HD Hyundai Electric, LS Electric, and optionally KEPCO as a deep value recovery play.
• Speculative Allocation (0–10%): A small position in hydrogen-nuclear crossover names like Doosan Fuel Cell for those with a longer time horizon and higher risk appetite.

This structure gives you concentrated exposure to the nuclear theme while spreading risk across the broader energy value chain. It also provides multiple ways to win — even if reactor construction timelines slip, grid infrastructure spending and equipment demand should remain robust.

One more thing that we feel strongly about: rebalancing matters. After a 40–50% run in nuclear names, it's tempting to let winners ride indefinitely. But trimming into strength and reallocating to lagging segments of the portfolio — like KEPCO or hydrogen names — can improve risk-adjusted returns over time.

Conclusion: The Korean Nuclear Investment Opportunity Is Real, But Discipline Is Essential

Let's sum it up. The Korean nuclear energy sector is experiencing a once-in-a-generation convergence of favorable policy, global demand, and technological relevance. Government commitment to nuclear expansion is the strongest it has been in decades. The global uranium supply deficit is structural, not cyclical. And the AI-driven surge in electricity demand provides a demand catalyst that simply didn't exist five years ago.

The stocks and ETFs we've covered in this guide represent the best-in-class ways to access this theme on the Korean market. Doosan Enerbility, KEPCO E&C, and the TIGER Uranium & Nuclear ETF are the most liquid and well-established options. Smaller names like Woojin and BHI offer higher upside but come with commensurately higher risk. Adjacent plays in grid infrastructure and electrical equipment — HD Hyundai Electric, LS Electric — provide a more defensive way to ride the same megatrend.

But — and we cannot stress this enough — valuations are not cheap. Many of these names have already priced in significant growth expectations. Political risk is ever-present in South Korea's polarized policy landscape. And nuclear construction timelines are measured in years, not quarters, meaning patience will be tested.

Our advice? Start building positions gradually, use pullbacks as buying opportunities, diversify across the value chain, and maintain strict discipline on position sizing. The nuclear renaissance in South Korea is not a fleeting trend — it's a multi-decade structural shift. But the path from here to there won't be a straight line. Stay informed, stay diversified, and stay patient. The opportunity is real, but so are the risks.

Disclaimer: This article is for informational and educational purposes only and does not constitute investment advice. All data cited is approximate and based on publicly available sources as of early 2026. Always conduct your own due diligence and consult a licensed financial advisor before making investment decisions. Past performance is not indicative of future results.