Singapore’s Nuclear Ambition Gets a Finnish Assessment Bench, Not a Reactor

Singapore's nuclear programme took another procedural step on 30 October 2026, when VTT Technical Research Centre of Finland and the Singapore Nuclear Research and Safety Institute (SNRSI) signed a five-year memorandum of understanding, witnessed by Singapore's Minister for Energy, Trade and Industry Tan See Leng and Finland's Minister of Economic Affairs Sakari Puisto.

The scope — reactor technology assessment and safety analysis, radioactive waste and spent fuel management, capability development — reads like a generic research agreement. Its significance lies elsewhere: in what it reveals about how far Singapore has actually progressed, and what must still happen before any reactor, and therefore any reactor-grade steel, is ordered.

The decision chain, not the decision

VTT's own release contains the operative qualifier, and it is worth quoting because it is the sentence most easily lost in coverage: "While Singapore has not made a decision on the adoption or deployment of nuclear energy, the country is building capabilities to evaluate the potential role of nuclear energy in its future energy mix."

That is consistent with the government's position. In a November 2025 parliamentary reply, the Ministry of Energy, Trade and Industry stated plainly that "the Government has not made any decision on deploying nuclear energy," and that the EMA-commissioned feasibility study "will not focus on potential sites or deployment timelines."

Singapore's nuclear work is therefore best understood as a sequence of gates, each of which must be passed before the next is funded:

The MoU sits in the fourth row. It does not move Singapore closer to a vendor selection; it improves Singapore's ability to judge whether any vendor's design should be selected at all. Jani Halinen, VTT's Vice President for Nuclear Energy, framed the role precisely: building "independent knowledge and capabilities needed for assessing nuclear energy options."

Why Finland, and why VTT specifically

Finland is a defensible choice for a small state seeking an independent technical benchmark rather than a sales pitch. It operates five reactors (Olkiluoto 1–3, Loviisa 1–2) with a strong safety and availability record, and — more unusually — it is on the verge of operating Onkalo, the world's first deep geological repository for spent fuel. VTT has been involved in that programme since its inception and holds a formal nuclear safety assessment remit.

The distinction from vendor-led cooperation matters. Singapore's engagement with reactor suppliers — Rosatom, KHNP, EDF, Westinghouse, GE-Hitachi and the SMR developers — is necessarily commercial. VTT is a state-owned applied-research organisation, not an EPC contractor or export-credit vehicle. Its involvement does not tilt the eventual technology choice toward any supply chain.

SNRSI CEO Low Xin Wei's remark that both countries are "relatively small nations that recognise the value of specialised expertise, strong institutions and international cooperation" is the diplomatic version of a real structural point: Singapore lacks the land, the domestic regulatory history and the utility-scale engineering base that traditional nuclear adopters had. It must import assessment capability before it can credibly regulate or procure.

The waste workstream deserves more attention than it gets

Of the three named workstreams, radioactive waste and spent fuel management is the one with the clearest eventual industrial content — and the one that is hardest to outsource once a decision is made.

For a city-state of roughly 730 km², spent fuel is not a siting inconvenience; it is potentially a programme-ending constraint. Any reactor deployed in Singapore would generate waste for which there is no domestic geological disposal option in any realistic sense. The plausible pathways — regional disposal arrangements, long-term interim storage with dry casks and overpacks, or export under bilateral agreements — all require exactly the kind of technical assessment and regulatory credibility that a partnership with the Onkalo chain provides.

This is also where the metals supply chain becomes relevant, though strictly as a conditional and long-dated matter. Dry storage casks, overpacks, liners and any repository components are heavy, high-specification fabricated metal goods. But no procurement, tonnage or supplier has been identified in any source, and any numerical estimate of Singapore's eventual requirements would be speculative. I would caution against treating this MoU as a demand signal.

What would actually move the needle for suppliers

Three observable developments would convert Singapore's capability-building into something with material implications for equipment and metals supply:

The Mott MacDonald verdict. A finding that advanced designs — most likely SMRs — are safe and technically feasible for Singapore's dense urban environment is the precondition for everything else. EMA's own public explainer has acknowledged that most advanced nuclear projects remain at an early stage of development, so a wholly positive finding is not assured.

The 2027 INIR mission. An IAEA review is a structured audit of a country's nuclear infrastructure — legal framework, regulatory body, human resources, waste management, emergency planning. Passing it, and the follow-up actions it generates, is the conventional marker that an adopter is serious. It is also the point at which regulatory structures must exist in law, not just in research institutes.

A formal deployment decision. Only after this would an RFP for reactor technology follow. And even then, the steel implications are structurally different from a conventional large-LWR programme. SMR-heavy strategies shift fabrication from site structural steel and large forgings toward shop-welded pressure-boundary modules — more specialised alloy plate and precision welding, less bulk rebar and containment plate. For a country of Singapore's size, the site-civil content of any nuclear build would be modest by international standards.

The capability race is the real story

What is genuinely notable about this MoU is the pace and breadth of Singapore's institution-building. In roughly eighteen months Singapore has established SNRSI as a full institute with a S$66 million grant and a target of about 100 specialists by 2030, commissioned a multi-year feasibility study, signed capability-building agreements with the US and now Finland, and scheduled an IAEA infrastructure review.

That is a deliberate, sequenced programme run by a government that has been explicit about not having decided anything. The VTT agreement is a component of that programme — an assessment bench, staffed with foreign expertise, built so that when a decision is eventually presented to ministers, it can be interrogated by Singaporeans rather than accepted on a vendor's assurances.

For industry readers, the correct reading is patience with attention. Nothing in this MoU commits Singapore to nuclear power, to a reactor type, or to any supply chain. What it does is shorten the odds that Singapore will one day be able to make that commitment competently. The commercial trigger remains the feasibility finding and the INIR outcome — both of which fall in 2027 or later.