A new strategic axis is forming in Southeast Asia — one that could reshape Indo-Pacific energy security and the global race for battery metals.
Picture a pre-dawn morning on Manila Bay. The water is flat and pewter-grey, the horizon already backlit by the approaching heat of the tropics. Somewhere north of the capital, on the Bataan Peninsula, a concrete hulk sits in silence — a 621-megawatt nuclear reactor that was completed forty years ago and has never once generated a single commercial kilowatt. Down the coast in Surigao, a different kind of wealth lies buried in the red-brown laterite soil: nickel and cobalt deposits that the world’s electric vehicle industry now considers more strategically valuable than oilfields.
On 3 March 2026, South Korean President Lee Jae-myung flew into Manila to mark 77 years of diplomatic relations between Seoul and Manila. What he brought with him was considerably more consequential than ceremony. Over two days of talks at Malacañang Palace, Lee and Philippine President Ferdinand Marcos Jr. signed ten memorandums of understanding, announced a framework for nuclear energy cooperation spanning both the revival of the Bataan plant and the introduction of entirely new reactors, and pledged to build joint critical-mineral supply chains that could partially wean South Korea off its dangerous dependence on Chinese processing. The summit was the most substantive expansion of the Seoul–Manila relationship in a generation — and its implications reach far beyond the two capitals.
The Bataan Question: A Reactor Reawakened
The Bataan Nuclear Power Plant is one of Asia’s stranger historical footnotes. Construction began in 1976, during the oil shock era, at a cost that eventually reached $2.3 billion. The plant was completed in 1984, physically ready to generate power, but it was never loaded with fuel. The fall of Ferdinand Marcos Sr., safety questions raised by Chernobyl in 1986, and allegations of corruption in the original Westinghouse contract conspired to mothball the facility. For four decades it has sat in preservation mode, maintained at a cost of nearly $900,000 a year in public funds, occasionally opened to tourists and engineering students. The irony — that a nation paying some of Southeast Asia’s highest electricity tariffs is sitting on a ready-built nuclear plant — has never been lost on Filipino energy economists.
What changed the calculus was Korea Hydro & Nuclear Power (KHNP), the state-owned operator behind South Korea’s formidable civilian nuclear programme. In October 2024, on the sidelines of a bilateral summit where Korean President Yoon Suk Yeol and Marcos met in Manila, KHNP signed an MOU with the Philippine Department of Energy to conduct a comprehensive technical and economic feasibility study on Bataan’s potential rehabilitation. The study — funded entirely by KHNP, with no financial obligation imposed on Manila — began in January 2025 and is being conducted in two phases: first, assessing the plant’s current structural and safety condition; second, evaluating refurbishment options and economic viability.
KHNP is not new to Bataan. The consortium has studied the site in 2008 and 2017, alongside KEPCO KPS and Doosan Heavy Industries, making South Korea arguably the world’s most informed external evaluator of the plant’s prospects. That institutional memory matters enormously: the degradation of ageing nuclear infrastructure is extraordinarily complex to assess, and KHNP brings decades of hands-on data.
The March 2026 summit elevated the conversation further. Lee and Marcos committed to moving beyond the feasibility stage, deepening cooperation across the Philippines’ entire nuclear ambition. On the sidelines of the Korea-Philippines Business Forum, KHNP, the Export-Import Bank of Korea, and Manila Electric Company (Meralco) signed a fresh memorandum aimed at jointly developing business and financing models for new nuclear power plants — an explicit signal that Seoul is positioning itself as Manila’s preferred nuclear partner not only for Bataan but for greenfield projects to come.
The Numbers Behind Manila’s Nuclear Ambition
The strategic logic driving Manila is straightforward: the Philippines’ electricity demand is expected to more than triple by 2040, its per-capita consumption remains among the lowest in ASEAN, and coal still supplies around 62% of the generation mix. Under the Philippine Energy Plan 2023–2050’s Clean Energy Scenario, the Department of Energy targets 1,200 MW of nuclear capacity by 2032, expanding to 2,400 MW by 2035 and reaching 4,800 MW by 2050 — with eight 150-MW small modular reactors (SMRs) potentially accounting for the first tranche.
These are ambitious timelines. Most nuclear analysts would describe 2032 as optimistic even under ideal circumstances — and Philippine regulatory infrastructure for a civilian nuclear programme is still being assembled. But the directional commitment is firm, backed by executive orders and a DOE roadmap. The government has identified 13 potential SMR sites, including locations near Bataan and in Batangas, and is planning to begin accepting nuclear project applications by 2026.
For South Korea, this represents a market worth competing hard to win. KHNP’s APR1400 reactor — the design deployed in the UAE’s Barakah plant, the most ambitious nuclear export in Korean history — along with the country’s emerging SMR offerings, position Seoul as a credible alternative to US, French, Russian, and Chinese vendors. A major role in the Philippine nuclear build-out would give Seoul a strategic foothold in the fast-growing Southeast Asian nuclear market at precisely the moment when Vietnam, Indonesia, and Thailand are also revisiting atomic energy options.
Critical Minerals: Technology Meets Geology
If nuclear cooperation is the headline, the critical minerals dimension of the Seoul–Manila partnership may prove its most enduring legacy.
South Korea is among the world’s most technologically sophisticated economies, home to Samsung, SK Hynix, LG Energy Solution, and POSCO — manufacturers whose supply chains require staggering quantities of nickel, cobalt, lithium, and rare earth elements. Yet South Korea mines virtually none of these materials domestically. For years, it has relied on Chinese processing and refining for the bulk of its battery-metal inputs, a dependency that Beijing has demonstrated it is willing to weaponise through export controls.
The Philippines offers a geological answer to that geopolitical problem. The archipelago possesses the world’s fifth-largest reserves of both nickel and cobalt, with nickel production ranking among the top two globally according to the US Geological Survey. Estimated untapped mineral wealth — copper, gold, nickel, zinc, silver — runs to roughly $1 trillion, with only around 5% of the country’s mineral territory explored to date. The Philippines also holds approximately $170 billion in nickel deposits in Zambales, Surigao, Dinagat, and Palawan alone, according to the US International Trade Administration.
“Korea has advanced technologies, while the Philippines is rich in mineral resources,” Lee told reporters at Malacañang, “which makes the two countries ideal partners in the critical minerals sector.” The MOU on critical minerals cooperation signed during the visit aims to translate that complementarity into actual supply chain architecture — from mine development and processing technology to downstream manufacturing integration.
South Korea’s ambition here is systemic. Seoul currently chairs the Minerals Security Partnership (MSP), the US-led coalition of advanced economies designed to build non-Chinese critical mineral supply chains. Lee has been pursuing a multi-front diversification strategy: he engaged Brazilian President Lula on rare earths and nickel in South America; now, in Southeast Asia, the Philippines becomes the next node in that chain. Korea Mine Rehabilitation and Mineral Resources Corp was also represented at the Manila summit, signalling state-level commitment to de-risking private investment.
The challenge is real. POSCO Future M’s attempted nickel joint venture in the Philippines collapsed in 2023 due to economic viability concerns. Infrastructure bottlenecks — inadequate ports, unreliable power, water supply constraints — have historically deterred the capital-intensive processing investments that would allow the Philippines to capture more value from its ore. The new MOUs will need to be backed by serious financing mechanisms, including from the Export-Import Bank of Korea, if they are to move beyond the aspirational.
The Free Trade Foundation
The nuclear and minerals push sits atop a newly fortified economic foundation. The Korea–Philippines Free Trade Agreement, signed in September 2023, entered into force on December 31, 2024 — a year ahead of original expectations and coinciding with the 75th anniversary of diplomatic ties. The FTA eliminates tariffs on 94.8% of Philippine exports to Korea and 96.5% of Korean exports to the Philippines, covering $3.18 billion in existing trade flows.
The immediate impact has been striking. Lee noted at the Manila Business Forum that since the FTA took effect, Korean investments in the Philippines have grown more than fivefold. Major Korean corporate names are already deepening their Philippine footprint: HD Hyundai Heavy Industries held a steel-cutting ceremony at Subic Shipyard; Samsung Electro-Mechanics is pushing ahead with a large-scale expansion of its MLCC production facility; and companies including Lotte, SK, and LG sent senior executives to the Korea-Philippines Business Forum — the first such forum Lee has held in Southeast Asia since his inauguration in June 2025.
The two governments also signed an upgraded MOU establishing a ministerial-level Joint Commission on Trade, Investment, and Economic Cooperation (JCTIEC), designed to provide faster resolution of business frictions and to coordinate cooperation across semiconductors, shipbuilding, marine equipment, critical raw materials, energy, and the digital economy.
The Geopolitical Frame: Hedging in the Indo-Pacific
No account of this partnership is complete without acknowledging the strategic backdrop against which it is unfolding. The Philippines sits at the centre of the most contested maritime space in Asia — the South China Sea — and has in recent years significantly hardened its posture toward Chinese maritime assertiveness. The two presidents addressed regional security directly at their summit, with Marcos declaring that both governments “recognised the growing uncertainty in geopolitical developments” and “agreed on the need to firmly and consistently uphold a rules-based order governed by international law, including in the maritime domain.”
For ASEAN member states navigating the sharpening rivalry between Washington and Beijing, South Korea represents an almost ideally positioned middle-power partner: technologically advanced, economically substantial, politically aligned with the democratic world order, yet not carrying the full diplomatic weight of direct US involvement. South Korea is ASEAN’s second-largest trading partner, and Lee has been explicit about his ambition to use the Philippine state visit as a springboard for deepening Korea’s entire ASEAN footprint.
The IEA’s Global Critical Minerals Outlook 2025 makes the stakes of supply chain concentration uncomfortably clear: between 2020 and 2024, geographic concentration in refining increased across nearly all critical minerals, with approximately 90% of supply growth coming from the single top supplier in each category — China for cobalt, graphite, and rare earths; Indonesia for nickel. For economies like South Korea, which the IEA specifically flags as vulnerable to “major revenue and job losses” in the event of prolonged supply disruptions, diversification is not a preference but an existential necessity.
Partnering with the Philippines checks multiple strategic boxes simultaneously: it diversifies mineral sourcing away from China, creates leverage within the MSP architecture, opens a new nuclear export market, and cements South Korea’s profile as a responsible technology-sharing partner in the Indo-Pacific — precisely the kind of soft-power dividend that Seoul has sought since its “Global Pivotal State” foreign policy doctrine was articulated under the previous Yoon administration and has continued under Lee.
What Comes Next
The work ahead is harder than the ceremony suggests. Several realities deserve clear-eyed acknowledgement:
- Bataan’s fate remains genuinely uncertain. KHNP’s feasibility study has not yet reported, and refurbishing a 40-year-old reactor that was never commissioned is a technically and financially unprecedented undertaking. Rosatom’s 2017 assessment put rehabilitation costs at $3–4 billion; the Philippine DOE’s own 2022 estimate was $2.3 billion. Neither figure has been recently updated. Environmental groups remain firmly opposed. If KHNP concludes the plant is unviable, the focus will shift entirely to new-build SMRs and larger reactors.
- Critical minerals require infrastructure, not just MOUs. The Philippines’ mining sector, while resource-rich, faces persistent challenges around permitting timelines, environmental compliance, and the absence of domestic processing capacity. Moving from ore export to value-added refining — the step Seoul most needs — will require years of sustained capital commitment and regulatory reform.
- Political continuity is not guaranteed. Philippine energy policy has historically been subject to sharp reversals between administrations. The nuclear programme received its current momentum from executive orders signed since 2022; a future government could alter course. South Korea’s own political landscape, emerging from a turbulent constitutional crisis in late 2024, is also in a period of recalibration under Lee.
None of this diminishes the significance of what was agreed in Manila. The structural logic of the partnership — Seoul’s technology and capital meeting Manila’s minerals and energy ambition, in a geography of rising strategic importance — is genuinely compelling. The MOU on nuclear cooperation between KHNP, the Export-Import Bank of Korea, and Meralco creates a financing framework that didn’t exist before. The critical minerals MOU provides a legal architecture for supply-chain investment. The FTA provides the commercial foundation. The question is whether the institutional follow-through will match the diplomatic momentum.
If it does, the Manila skyline may one day be illuminated — at least in part — by power generated from a reactor built with Korean engineering, fuelled by a supply chain secured with Philippine cobalt. That would be a remarkable outcome for two countries whose relationship was forged in the crucible of the Korean War, when Filipino soldiers crossed the Pacific to fight alongside a nation that was then among the poorest in Asia.
Seventy-seven years later, South Korea brings technology, capital, and strategic vision. The Philippines brings minerals, geography, and the audacity to restart a reactor that has waited four decades for its moment. In a world defined by resource competition and energy insecurity, that combination has never been more valuable.
Sources & Further Reading
- The Korea Herald — “Seoul, Manila broaden ties beyond defense to nuclear energy, critical minerals” (March 2026) → https://www.koreaherald.com/article/10686145
- The Diplomat — “South Korea and the Philippines Expand Ties in Nuclear Energy and Critical Minerals” (March 2026) → https://thediplomat.com/2026/03/south-korea-and-the-philippines-expand-ties-in-nuclear-energy-and-critical-minerals/
- Philippine Inquirer / Global Nation — “Philippines, South Korea deepen defense, AI, and nuclear energy ties” (March 2026) → https://globalnation.inquirer.net/312175/philippines-south-korea-deepen-defense-ai-and-nuclear-energy-ties
- World Nuclear News — “Korea to assess rehabilitation of Philippine plant” (October 2024) → https://www.world-nuclear-news.org/articles/korea-to-assess-rehabilitation-of-philippine-plant
- World Nuclear Association — “Nuclear Power in the Philippines” (country profile) → https://world-nuclear.org/information-library/country-profiles/countries-o-s/philippines
- IEA — Global Critical Minerals Outlook 2025 → https://www.iea.org/reports/global-critical-minerals-outlook-2025
- US International Trade Administration — “Philippines Critical Minerals” → https://www.trade.gov/market-intelligence/philippines-critical-minerals
- Korea Herald — “Lee puts energy, infrastructure, manufacturing at core of Korea-Philippines economic ties” (March 2026) → https://www.koreaherald.com/article/10686910
- Eco-Business — “Green groups alarmed as Philippines and South Korea start feasibility study for Bataan Nuclear Power Plant” (July 2025) → https://www.eco-business.com/news/green-groups-alarmed-as-philippines-and-south-korea-start-feasibility-study-for-bataan-nuclear-power-plant/
- BusinessKorea — “South Korea Faces Nickel Supply Chain Challenge” (March 2026) → https://www.businesskorea.co.kr/news/articleView.html?idxno=264087
- PortCalls Asia — “PH, South Korea sign pact for smoother trade, investment flows” (March 2026) → https://portcalls.com/ph-south-korea-sign-pact-for-smoother-trade-investment-flows/
- Philippine News Agency — “Philippines, Korea commit to maximize free trade deal” (March 2026) → https://www.pna.gov.ph/articles/1270251
- Nuclear Engineering International — “Philippines targets nuclear power by 2032” (September 2025) → https://www.neimagazine.com/news/philippines-targets-nuclear-power-by-2032/
- NucNet — “KHNP to Conduct Study on Revival of Bataan Nuclear Plant” (2024) → https://www.nucnet.org/news/khnp-to-conduct-study-on-revival-of-bataan-nuclear-plant-say-reports-10-1-2024
- World Economic Forum — “Why we need critical minerals for the energy transition” (2025) → https://www.weforum.org/stories/2025/05/critical-minerals-energy-transition-supply-chain-challenges/
- ASEAN Briefing — “Philippines-Korea Free Trade Agreement: Investor Opportunities” (March 2025) → https://www.aseanbriefing.com/news/philippines-korea-free-trade-agreement-opportunities-and-insights-for-foreign-investors/
