Document Code: SG-F-29 Full Title: Singapore and the Second Trump Administration — Tariffs, Hormuz, and the Strategic Reset (2025–2026) Coverage Period: 2025–2026 Level Designation: Level 2 Status: [COMPLETE] Primary Sources Consulted:

Lawrence Wong, Video Message on the Implications of the US Tariffs, Prime Minister's Office, 4 April 2025
Lawrence Wong, Ministerial Statement on the US Tariffs and Implications, Parliament of Singapore, 8 April 2025
Lawrence Wong, S Rajaratnam Lecture 2025, "A Safe Harbour in a Turbulent World," Ministry of Foreign Affairs, 16 April 2025
Vivian Balakrishnan, Press Conferences and Parliamentary Statements on US Relations, Ministry of Foreign Affairs, 2025–2026
Vivian Balakrishnan, Oral Reply to Supplementary Question on the Situation in the Middle East, Parliament of Singapore, 7 April 2026
Ministry of Foreign Affairs Singapore, Spokesperson's Comments on Trump Tariff Measures, April 2025
Ministry of Trade and Industry Singapore, Singapore Economic Resilience Taskforce (SERT) announcement, 8 April 2025
Ministry of Trade and Industry Singapore, GDP and trade performance releases, quarterly 2025 and Q1 2026
Ministry of Trade and Industry Singapore, Media statement on Section 122 tariff implementation, February 2026
Monetary Authority of Singapore, Monetary Policy Statements, April, July, October 2025 and January 2026
White House, Executive Orders 14256 and 14257, "Liberation Day" tariff action, 2 April 2025
US Trade Representative, Reciprocal Tariff Calculations and country annexures, April 2025
US Trade Representative, Section 301 investigation initiation notice targeting Singapore and 15 other economies, March 2026
Ministry of Defence Singapore, bilateral defence cooperation and SAF overseas training statements, 2025–2026
Singapore Department of Statistics, merchandise trade data and GDP accounts, 2024–2026
US Census Bureau, Trade in Goods with Singapore, 2024–2025
Enterprise Singapore, USSFTA FAQ on US Tariffs, updated April 2025
RSIS, "Tariff Wars — Singapore's Critical Role in Global Supply Chain Stability," August 2025
ISEAS-Yusof Ishak Institute, The State of Southeast Asia Survey 2025 and 2026, Singapore
Bilahari Kausikan, public lectures and columns on US-China competition and Singapore positioning, 2025–2026
IISS, Shangri-La Dialogue proceedings, June 2025
The Straits Times, Business Times, and Channel NewsAsia, contemporaneous coverage of Singapore-US relations, 2025–2026

Related Documents:

SG-F-02: Singapore and the United States — Strategic Partnership (1965–2026)
SG-F-03: Singapore and China — From Coolness to Partnership to Managed Tension (1965–2026)
SG-F-12: US-China Rivalry and Singapore's Positioning (2017–2026)
SG-F-27: Singapore and the Iran-Israel-US War — Hormuz Crisis and Governance Response (2025–2026)
SG-F-28: Lawrence Wong's Foreign Policy Doctrine — Continuity, Recalibration, and the Post-LHL Era (2024–2026)
SG-F-21: Singapore's Defence Doctrine and the SAF
SG-F-01: The Foundations of Singapore's Foreign Policy — Principles and Practice (1965–2026)
SG-O-02: Trump Tariffs and Singapore — The Trade War, GDP Paradox, and Strategic Repositioning (2025–2026)
SG-O-09: Geopolitical Realignment — ASEAN in Flux (2010–2025)
SG-B-09: The Lawrence Wong Transition
SG-M-08: Pragmatism as Governing Philosophy
SG-E-03: Singapore as Global Trading Hub

Version Date: 2026-05-14

1. Key Takeaways

The return of Donald Trump to the United States presidency in January 2025 constituted the single most consequential external shock to Singapore's strategic environment since the Global Financial Crisis of 2008-2009 — not because of military threat but because it challenged the two foundational pillars of Singapore's post-independence prosperity simultaneously: the rules-based multilateral trading order and the durability of US security commitments in Asia. Trump's second administration arrived with a coherent mercantilist logic that treated allies and adversaries by the same transactional measure, and Singapore — a small city-state with no domestic market of leverage and no retaliatory capacity — found itself navigating an unprecedented combination of trade pressure, energy crisis, and great-power realignment within the first sixteen months of its new Prime Minister's tenure.
The "Liberation Day" tariff action of 2 April 2025 — Executive Orders 14256 and 14257 imposing a universal 10 per cent baseline tariff on virtually all US imports — placed Singapore on the same footing as countries that had actively managed their trade surpluses with the United States. Singapore ran a bilateral trade deficit with the US on goods, a fact that Prime Minister Lawrence Wong's ministerial statement of 8 April 2025 foregrounded with controlled outrage: the tariffs were "not actions one does to a friend." The USSFTA, signed in 2004 and providing zero-duty access on the vast majority of bilateral trade, was rendered effectively inoperative overnight. Wong's declaration that "the era of rules-based globalisation and free trade is over" was not rhetorical hyperbole but a considered assessment that Singapore's government was prepared to state publicly what many allied governments were not.
Singapore's GDP paradox — full-year 2025 growth of 5.0 per cent, accelerating through the year despite the tariff shock — reflected the particular sectoral composition of Singapore's economy rather than a vindication of protectionist logic. AI-driven semiconductor demand, trade diversion effects as supply chains rerouted through Singapore's neutral hub, front-loading of exports ahead of tariff implementation, and the temporary US-China de-escalation of May 2025 all contributed to an outcome that surprised most external forecasters. The paradox should not obscure the structural vulnerability it revealed: Singapore's short-term resilience was partly a function of global supply-chain architectures that were themselves in the process of being disrupted.
The Hormuz crisis of February-April 2026, triggered by US-Israeli strikes on Iran and the subsequent closure of the Strait of Hormuz, added a second dimension to Singapore's stress-test of the Trump era. The US military posture — imposing a naval blockade on Iran from 13 April 2026 — aligned broadly with Singapore's interest in restoring freedom of navigation, but it also placed Singapore in the position of being a de facto beneficiary of US military action in a conflict it had publicly described as requiring a negotiated resolution. Managing the appearance of equidistance while depending operationally on American naval presence to reopen the strait required diplomatic language of exceptional precision.
Prime Minister Lawrence Wong's foreign policy doctrine — articulated as "principled, pragmatic, and proportionate" across multiple speeches in 2025-2026 (see SG-F-28) — found its most severe real-world test in the dual pressure of the tariff regime and the Hormuz closure. Wong maintained the structural logic of Singapore's position — deep security ties with the US, deep economic integration with China, principled adherence to international law — while recalibrating the tone. His language toward Washington was notably more frank than that of his predecessor: he named the tariffs as contrary to the norms of friendship, resisted the framing that ASEAN states had to choose between the US and China, and insisted that Singapore's defence of international law was non-negotiable regardless of which great power was on the wrong side of any given dispute.
Singapore's defence relationship with the United States remained the most stable element of the bilateral relationship through the Trump 2.0 period. The Singapore Armed Forces' training facilities in the continental US, the operational access provisions of the 1990 Memorandum of Understanding and its 2005 Strategic Framework Agreement successor, and the Republic of Singapore Air Force's F-35 procurement programme all continued without disruption. The Trump administration's transactionalism, which viewed allies through the lens of burden-sharing and industrial procurement, was arguably advantageous for Singapore: a country that buys American military equipment and hosts American military training generates the kind of tangible bilateral ledger that transactional logic can credit.
The China-triangulation dimension of Singapore's Trump-era positioning was managed with notable care. Singapore resisted any framing that characterised its position on the tariffs as alignment with Beijing, and Wong's S Rajaratnam Lecture of April 2025 — titled "A Safe Harbour in a Turbulent World" — was directed as much at reassuring Washington of Singapore's continued strategic reliability as at positioning Singapore for a diversified global future. Singapore did not join any coalition of states opposing US tariff measures, did not participate in retaliatory frameworks, and maintained its public position that bilateral engagement with the US remained the appropriate channel for redress.
By May 2026, the strategic outcome of the Trump 2.0 period for Singapore was complex but not catastrophic. Trade had been disrupted but not severed. The security relationship had proven robust against transactionalism. The Hormuz crisis had been acute but had produced no lasting rupture. The deeper challenge — the progressive erosion of the rules-based multilateral order on which Singapore's entire national strategy rested — remained unresolved, and Wong's government faced the task of managing an era in which the rules Singapore had spent sixty years helping to build could no longer be assumed to hold.

2. The Record in Brief

Singapore's relationship with the United States is one of the most carefully constructed and asymmetric partnerships in contemporary diplomacy. The asymmetry is structural: the United States is the world's largest economy, the dominant military power in the Asia-Pacific, and the guarantor — however reluctant or conditional — of the regional order that has underpinned Singapore's prosperity since independence. Singapore is a city-state of approximately 6 million people with no strategic depth, no natural resources, and no domestic market of geopolitical leverage. The relationship has survived and deepened across ten US administrations precisely because Singapore has made itself consistently useful to Washington without making itself dependent on Washington's goodwill.

The legal architecture of the relationship is substantial. The 1990 Memorandum of Understanding on the Use of Facilities in Singapore provided US naval vessels access to Changi Naval Base and US air assets access to Paya Lebar Air Base — an arrangement that has made Singapore a critical node in the US military's Pacific logistics network. The 2005 Strategic Framework Agreement for a Closer Cooperation Partnership elevated the relationship to a formal strategic level, covering defence, security, counter-terrorism, non-proliferation, and economic cooperation. The US-Singapore Free Trade Agreement, signed in 2003 and in force from 2004, was the first US FTA with an Asian country and established the bilateral economic relationship on a rules-based foundation of zero or near-zero tariff rates on most traded goods.

For two decades following the USSFTA's entry into force, the bilateral trade relationship operated on that rules-based foundation with minimal friction. Singapore ran a modest goods trade deficit with the United States — importing aircraft, industrial machinery, pharmaceutical products, and services — while exporting integrated circuits, refined petroleum products, and high-value manufactured goods. US foreign direct investment in Singapore grew substantially, with American companies — particularly in the semiconductor, pharmaceutical, financial services, and digital sectors — treating Singapore as their Asia-Pacific headquarters of choice. By 2024, the United States was Singapore's fifth-largest goods trading partner and the largest source of FDI stock. On services — which the USSFTA also liberalised — the bilateral surplus ran strongly in Singapore's favour, reflecting Singapore's role as a financial and professional services hub for the region.

The first Trump administration (2017-2021) had tested this relationship modestly. Trump's withdrawal from the Trans-Pacific Partnership in January 2017 — reversing a major US trade-liberalisation commitment — was a significant signal, but it left the bilateral USSFTA intact and did not impose new tariffs on Singapore. The US-China trade war of 2018-2019 created trade diversion effects that Singapore partly captured, as supply chains rerouted through the city-state. The Trump-Kim Singapore Summit of June 2018 (see SG-F-24) reinforced Singapore's value as a neutral meeting ground for high-stakes diplomacy, generating goodwill that partially offset the disruptions caused by TPP withdrawal. Lee Hsien Loong managed the first Trump administration with pragmatic diplomacy, emphasising the USSFTA's durability and Singapore's continued value as a security partner.

The second Trump administration, which took office on 20 January 2025, arrived with a more coherent and aggressive mercantilist framework than the first. The key difference was not merely the personnel — though the presence of committed economic nationalists in trade and economic roles was significant — but the intellectual architecture. Trump 2.0 operated with an explicit theory of protectionist advantage: that US trade deficits reflected unfair practices by trading partners, that tariffs were both a revenue tool and a bargaining chip, and that bilateral relationships should be assessed by the crudest measure of goods trade balance rather than the total value of economic integration. For Singapore, whose surplus with the US was concentrated in goods that reflected supply-chain positioning rather than currency manipulation or export subsidies, this framework was analytically inaccurate but politically formidable.

Prime Minister Lawrence Wong took office on 15 May 2024, inheriting an established relationship structure and arriving in Washington on a state visit that the transition from Lee Hsien Loong to Wong navigated without disruption. Wong met Trump and maintained the pattern of high-level bilateral engagement that Singapore's strategic importance justified. The defence and intelligence channels — involving MINDEF, MFA, and senior military leadership — continued to function at their established operational level regardless of the turbulence at the political level.

The stress test arrived on 2 April 2025. What followed across the next fourteen months — the tariff shock, the Hormuz crisis, the Section 301 investigation, and the naval blockade of Iran — constituted the most intensive period of Singapore-US relationship management since the difficult 1968-1971 period of British military withdrawal, when Singapore's founding leaders had similarly faced the task of managing a great-power reduction of commitment while maintaining the appearance of strategic confidence.

3. Timeline 2025–2026

January 2025: Donald Trump inaugurated for a second term on 20 January 2025. His inaugural address emphasised economic nationalism, border security, and a transactional approach to alliances. Singapore's Ministry of Foreign Affairs issued a congratulatory statement. PM Lawrence Wong signalled continuity of engagement.

February–March 2025: The Trump administration conducted a comprehensive review of US trade relationships, producing country-level assessments that formed the basis for the "Liberation Day" tariff calculations. USTR published the methodology for "reciprocal tariff" calculations, which used the trade deficit as a proxy for "unfair" barriers regardless of whether those barriers reflected actual tariff or non-tariff measures. Enterprise Singapore updated its USSFTA FAQ to advise exporters on the uncertain environment.

2 April 2025 ("Liberation Day"): White House Executive Orders 14256 and 14257 imposed a 10 per cent baseline tariff on virtually all imports into the United States. Singapore was assigned the 10 per cent baseline — the lowest tier — rather than a higher rate. The USSFTA's preferential rates were effectively suspended. Approximately 60 countries received higher rates based on the USTR's reciprocal tariff formula.

4 April 2025: PM Lawrence Wong issued a video message on the implications of the US tariffs, warning that the tariffs were "not actions one does to a friend" and that Singapore would not retaliate but would "stand up for the rules-based trading order." The video was widely shared internationally and positioned Singapore as a principled critic of the new trade architecture.

8 April 2025: Wong delivered a ministerial statement in Parliament, declaring that "the era of rules-based globalisation and free trade is over." The Singapore Economic Resilience Taskforce (SERT) was announced, chaired by Deputy Prime Minister Gan Kim Yong, to coordinate Singapore's economic response. The MAS adjusted its monetary policy stance to provide a supportive monetary environment for growth.

16 April 2025: Wong delivered the S Rajaratnam Lecture 2025, titled "A Safe Harbour in a Turbulent World," articulating Singapore's positioning in the new geopolitical environment. The lecture drew on Rajaratnam's founding foreign policy principles while updating them for a world of fragmentation and great-power rivalry. Wong called for Singapore to be a node of stability and connection in a world that was "fracturing but not yet broken."

May 2025: The US-China Geneva Joint Statement produced a temporary 90-day de-escalation in the bilateral trade war, reducing some tariff rates on US-China trade. This contributed to Singapore's stronger-than-expected economic performance in the second half of 2025.

June 2025: IISS Shangri-La Dialogue in Singapore. The US, represented by senior defence officials , reaffirmed US security commitments in the Indo-Pacific. Singapore's own interventions at the SLD emphasised the importance of ASEAN centrality and freedom of navigation.

August–December 2025: Singapore's GDP continued to grow more strongly than forecast, driven by semiconductor and electronics demand. The tariff regime produced trade diversion effects partly captured by Singapore as a neutral hub. SERT published its first interim assessment of economic resilience measures.

20 February 2026: The US Supreme Court in Learning Resources, Inc. v. Trump (24-1287) ruled that the International Emergency Economic Powers Act (IEEPA) did not authorise tariff imposition, striking down the IEEPA-based tariffs. Trump responded the same day by invoking Section 122 of the Trade Act of 1974, imposing a 10 per cent global tariff with a stated intention to raise it to the 15 per cent statutory maximum.

March 2026: USTR initiated Section 301 investigations targeting Singapore alongside Bangladesh, Cambodia, China, and approximately twelve other economies, citing concerns about trade facilitation, supply-chain circumvention, and digital services practices. The initiation of a Section 301 investigation — the same legal authority used to justify the original US-China trade tariffs of 2018 — represented a significant escalation from the baseline tariff regime, as Section 301 findings could support much higher sector-specific duties.

28 February 2026: US-Israeli airstrikes on Iran killed Supreme Leader Khamenei and senior IRGC commanders, triggering the Hormuz crisis (see SG-F-27).

2 March 2026: Iran closed the Strait of Hormuz. Singapore's economic and energy response was activated immediately.

7 April 2026: Ministerial statements in Parliament by Vivian Balakrishnan (foreign affairs), Gan Kim Yong (trade), and K Shanmugam (security) laid out Singapore's comprehensive position on the Hormuz crisis. Balakrishnan declared that Singapore would not negotiate passage terms with Iran, grounding the position in UNCLOS.

13 April 2026: The United States imposed a naval blockade on Iran. The Hormuz crisis entered its most acute military phase.

May 2026: . Singapore's Section 301 exposure remained unresolved.

4. The Trump 2.0 Inauguration (January 2025) and Singapore's Initial Posture

When Donald Trump was inaugurated for the second time on 20 January 2025, Singapore's response combined three elements that characterised its approach to all great-power transitions: formal congratulation, rapid strategic assessment, and calibrated public positioning. The Ministry of Foreign Affairs extended congratulations through the usual diplomatic channels. Internally, the Prime Minister's Office and MFA had already begun preparing scenario analyses of what a Trump 2.0 administration would mean for Singapore's three most exposed areas: trade policy, the security architecture of the Indo-Pacific, and US engagement with multilateral institutions.

The strategic assessment was not optimistic, but it was measured. Singapore's foreign policy establishment had watched the first Trump administration (2017-2021) closely enough to draw lessons about the gap between Trumpian rhetoric and operational reality. The first administration had withdrawn from the TPP and launched a trade war with China, but it had not fundamentally dismantled US forward presence in the Asia-Pacific, had not abrogated the bilateral alliance commitments that underpinned regional security, and had in several respects — notably in its scepticism toward China — reinforced positions that Singapore itself had long held about the need for clear-eyed assessment of Beijing's strategic intentions. The USSFTA had survived the first administration intact. SAF training in the United States had continued. Changi's operational role had remained unaltered.

The second administration brought reasons for both reassurance and concern. On the reassurance side: Trump's team signalled early that the Indo-Pacific security architecture — specifically the US military presence that formed the outer ring of Singapore's strategic comfort — would be maintained or enhanced as a counterweight to China. The Pentagon's operational posture in the Pacific did not retreat; in several respects, the hardening of the US-China technological and military competition accelerated deployments and exercise schedules. Singapore's access to US intelligence, its role in exercises like CARAT (Cooperation Afloat Readiness and Training), and the US naval access to Changi continued without interruption.

On the concern side: the trade architecture that had underpinned Singapore's economic model for twenty years was visibly under threat. The tariff review process that the administration launched in its first weeks was explicitly premised on rewiring US trade relationships in ways that treated the USSFTA as merely one consideration among many rather than as a binding legal framework. For Singapore, this was not an abstraction. The USSFTA had been a foundational element of Singapore's economic credibility — a signal to other trading partners and investors of Singapore's ability to conclude and sustain rules-based agreements. If the United States treated the FTA as optional, the value of the Singapore brand as a rule-of-law trade hub was directly impaired.

PM Wong's public posture in the weeks following the inauguration was deliberate and carefully modulated. He did not issue anxious reassurances or preemptive overtures that might signal weakness. He did not front-load criticism that might harden positions in Washington before the administration's economic policies were fully formed. Instead, he maintained the pattern of high-level bilateral engagement while signalling in speeches and interviews that Singapore's economic model rested on a rules-based foundation that the new administration's mercantilist turn was eroding.

The private diplomatic channel — between MFA and the State Department, between MINDEF and the Pentagon, and through Singapore's Embassy in Washington — remained active throughout this period. Singapore's value to Washington as a forward-positioned, politically stable, legally reliable ally whose defence spending was unimpeachable and whose trade deficit with the United States was genuine gave Wong's team a stronger hand than many other US trading partners possessed. The bilateral relationship had enough structural depth that it could absorb political turbulence at the top without institutional rupture. That structural depth was itself a product of decades of deliberate investment — every dollar of SAF training expenditure in the US, every procurement of American defence equipment, every American company that had been welcomed as a Singapore headquarters tenant, had contributed to a balance sheet that transactional logic could credit.

When Liberation Day arrived on 2 April 2025 and Singapore received the 10 per cent baseline rather than one of the higher rates assigned to other ASEAN states, the structural investment of prior decades was at least partly visible in the outcome. It was not, however, sufficient to exempt Singapore from the tariff altogether. And it was the combination of that relative treatment — better than neighbours, but still a breach of the USSFTA's zero-duty commitments — with the principle at stake that produced Wong's measured but frank public response.

5. The Reciprocal Tariffs Regime — April 2025 Liberation Day, 10% Universal Baseline, Singapore Treatment

The intellectual framework behind Trump's "reciprocal tariff" architecture was simultaneously simple and analytically flawed — a combination that made it politically effective domestically and difficult to rebut through the normal mechanisms of trade diplomacy. The USTR calculation methodology assigned each trading partner a "tariff rate" derived by dividing the US goods trade deficit with that country by that country's total goods exports to the United States. The result was then halved to produce the "reciprocal" rate. For countries running large trade surpluses with the US — Vietnam (46%), India (26%), Thailand (36%) — the resulting rates were substantial. For Singapore, which ran a trade deficit with the US on goods, the formula produced a rate below the 10 per cent floor, and the 10 per cent baseline was applied instead.

This treatment reflected a mathematical artefact rather than a deliberate exemption. Singapore's goods trade with the United States was genuinely balanced or mildly deficit on the goods side, in part because Singapore imported substantially more American goods — aircraft parts, oil, gas, defence equipment — than it exported. The services relationship told a very different story: Singapore's financial, professional, and digital services exports to the US were significant, but services trade was not counted in the USTR's tariff formula. Nor was the FDI dimension: American companies' use of Singapore as an Asia-Pacific base of operations, and the profits they repatriated from those Singapore operations, constituted a form of US economic benefit that was entirely invisible in a goods-trade balance methodology.

Enterprise Singapore's updated USSFTA FAQ of April 2025 attempted to clarify the practical implications for Singapore exporters. The core message was that despite the USSFTA's continued legal existence, the Administration's executive orders had superseded its preferential rate provisions under the claimed authority of IEEPA; goods that had previously entered the US duty-free now faced a 10 per cent charge. For Singapore's top goods export categories to the US — integrated circuits, other semiconductor products, refined petroleum, pharmaceutical products, and scientific instruments — the 10 per cent rate represented an additional cost that would need to be absorbed, renegotiated with buyers, or reflected in pricing. For the highest-value exports, where margins were sufficient, the impact was manageable. For more commoditised goods, it altered competitiveness calculations.

PM Wong's 8 April 2025 ministerial statement in Parliament was a document of unusual frankness. He described the tariffs as representing a fundamental shift — not merely a temporary disruption — in the international trade architecture, and he deliberately avoided the diplomatic hedging that might have softened the political signal at the cost of analytical clarity. His declaration that "the era of rules-based globalisation and free trade is over" was a statement about structural reality, not a lament. It served several functions: it positioned Singapore's government as clear-eyed rather than optimistic; it gave Singapore businesses unambiguous guidance to plan for a permanently changed environment rather than to wait for restoration of the pre-2025 regime; and it established Singapore publicly as a defender of the rules-based order rather than a passive victim of its collapse.

The SERT — Singapore Economic Resilience Taskforce — chaired by DPM Gan Kim Yong was the institutional response to this structural diagnosis. SERT's mandate covered three time horizons: immediate crisis management (assessing which Singapore exporters and sectors were most exposed and what support could be provided); medium-term adjustment (accelerating FTA diversification, particularly RCEP implementation and new bilateral agreements); and long-term structural repositioning (strengthening Singapore's role as a neutral connector economy in a bifurcating world). SERT's work ran in parallel with MAS's monetary policy adjustments, which calibrated the Singapore dollar's nominal effective exchange rate to provide a buffer against export competitiveness deterioration.

The Section 301 investigation initiated in March 2026 represented a more targeted threat than the baseline tariff. Section 301 of the Trade Act of 1974 authorises the USTR to investigate "unfair" trade practices and, if a violation is found, to impose retaliatory tariffs of up to 100 per cent on targeted goods. The investigation named Singapore alongside Bangladesh, Cambodia, China, India, Indonesia, Malaysia, the Philippines, Thailand, Vietnam, and several other economies, citing concerns that included: digital services taxation or regulation that discriminated against US companies; trade facilitation practices that allowed circumvention of tariffs on third-country goods; and government procurement practices that excluded US firms. For Singapore, the digital services and trade facilitation dimensions were the most relevant. Singapore's GST applied to imported digital services — a tax-neutrality measure that treated foreign and domestic digital services providers equivalently — was unlikely to survive a Section 301 challenge unscathed, even though it was substantively no different from the VAT measures applied by the EU and other jurisdictions. The circumvention allegation — that Singapore was being used as a transhipment hub to re-export Chinese goods in ways that evaded China-specific US tariffs — was more factually complex: Singapore's port genuinely processed enormous volumes of transit trade, and distinguishing legitimate entrepôt trade from tariff circumvention was both technically demanding and politically contentious.

Singapore's response to the Section 301 initiation was to engage proactively through both the formal USTR notice-and-comment process and through bilateral diplomatic channels. The MFA and Ministry of Trade and Industry worked jointly on Singapore's formal submission to USTR, documenting Singapore's trade facilitation practices, its anti-circumvention enforcement measures, and its existing bilateral investment treaty and USSFTA commitments. The substance of Singapore's position was that its trade practices were fully consistent with WTO rules and USSFTA commitments — a position that was legally accurate but whose legal accuracy offered limited protection in an environment where the administration's trade policy was being driven by domestic political logic rather than WTO jurisprudence.

The February 2026 Supreme Court ruling in Learning Resources, Inc. v. Trump — that IEEPA did not authorise tariff imposition — produced a brief moment of optimism among affected trading partners that was rapidly extinguished when Trump invoked Section 122 of the Trade Act of 1974 the same day. Section 122 had never previously been used for this purpose; it authorised a president to impose import surcharges of up to 15 per cent for up to 150 days to address "large and serious United States balance-of-payments deficits." The 10 per cent rate under Section 122, with a stated intention to raise it to 15 per cent, left Singapore's effective tariff rate roughly unchanged in the short term while introducing a new statutory basis whose 150-day time limit created the prospect of tariff expiration — and therefore regular political reassertion — as a recurring feature of US trade policy.

6. The Hormuz Crisis Coordination — Singapore Posture vis-à-vis US Naval Posture

The Iran-Israel-US war that began on 28 February 2026 and Iran's closure of the Strait of Hormuz on 2 March 2026 placed Singapore in a position of deep structural dependence on US military capacity at the very moment when the bilateral trade relationship was under its most severe strain in two decades. The dynamic was uncomfortable but not unprecedented: Singapore's security dependence on US naval presence and its economic differences with Washington on trade policy had coexisted for the entire history of the bilateral relationship. What was unusual in 2026 was the simultaneity and severity of both stresses.

Singapore's official position on the Hormuz closure was grounded in international law — specifically UNCLOS Article 38's guarantee of transit passage rights — rather than in alignment with either the US-Israeli military operation that had triggered the crisis or Iran's retaliatory closure. Foreign Minister Vivian Balakrishnan was explicit in parliamentary statements that Singapore regarded both the strikes that killed Khamenei and the Hormuz closure as violations of international norms: the former for its escalatory character, the latter for its direct breach of UNCLOS. That Singapore could make this argument — condemning the trigger and the response in the same legal framework — was only possible because Singapore's relationship with both the United States and Iran was not structured as an alliance. Singapore had no treaty obligation to endorse US military operations; it had a treaty obligation (UNCLOS) to defend freedom of navigation.

The practical coordination with the US military on the Hormuz crisis was managed through the established bilateral channels that the Strategic Framework Agreement and the Changi Naval Base access arrangements provided. . Singapore's navy did not participate in any joint operational deployment in or near the Strait; Singapore's contribution was diplomatic, logistical, and intelligence-sharing rather than combat-related. The US naval blockade of Iran announced on 13 April 2026 — which effectively placed US forces in the position of enforcing freedom of navigation through the contested waterway — was not formally endorsed by Singapore but served Singapore's operational interest in restoring Hormuz passage.

The framing challenge was genuine and was managed with deliberate care. Singapore's foreign minister had called for negotiations and a ceasefire at the ASEAN emergency meeting of 13 March 2026. Singapore had voted for UN Security Council emergency sessions. Singapore had expressed regret at the failure of negotiations that had preceded the US-Israeli strikes. Having taken these positions, Singapore could not then publicly endorse a US naval blockade — which represented an escalation rather than a de-escalation — without compromising the equidistant positioning that gave Singapore's diplomacy its credibility. What Singapore did instead was maintain its UNCLOS position while not contesting the US operational action: a form of diplomatic non-opposition that enabled the practical benefit of the US naval presence while preserving Singapore's public posture.

Balakrishnan's framing of Hormuz as "an Asian crisis" was intended partly to build a coalition that could engage Iran from a non-Western direction. China, India, Japan, and South Korea all shared Singapore's interest in restoring the strait; none of them were party to the US-Israeli operation that had triggered it. By naming the crisis as Asian, Singapore was attempting to construct a space for collective Asian engagement — including Chinese diplomatic pressure on Iran, Indian energy security leverage, and Japanese and Korean commercial weight — that might achieve a negotiated reopening without Singapore having to either endorse the US blockade or oppose it. Whether this diplomatic engineering succeeded remained , but the architecture of the approach was consistent with Singapore's broader foreign policy logic: multilateralise the response, universalise the principle, maximise the coalition, and let law do the moral lifting.

The Hormuz crisis also highlighted the military and strategic logic behind Singapore's continuing investment in the bilateral defence relationship with the United States. Singapore's own naval and air capabilities — the Republic of Singapore Navy's formidable frigate force and the RSAF's sophisticated air assets — were capable of defending Singapore's own waters and airspace but were not configured for power projection into the Persian Gulf. Singapore's ultimate insurance policy against a world in which maritime chokepoints were closed by regional powers with Iranian or similar capabilities was the US military's global reach. That insurance had a price: it required that Singapore maintain the bilateral security relationship at a level that made American forward presence a credible commitment rather than a diplomatic formality.

7. LW's "Principled, Pragmatic, Proportionate" Doctrine in the Trump 2.0 Frame

Lawrence Wong's foreign policy doctrine — elaborated in the S Rajaratnam Lecture of April 2025, in his speeches at the Shangri-La Dialogue in June 2025, and in his statements on the Hormuz crisis — took shape as a coherent response to a changed world rather than a simple restatement of inherited positions. The three-word formulation "principled, pragmatic, proportionate" encoded a set of choices about how Singapore would navigate the Trump 2.0 environment that were neither obvious nor costless.

The "principled" dimension was the most politically demanding. Wong's declaration that the era of rules-based free trade was over was not merely descriptive; it was a commitment to defend the principle even in an environment where the principal enforcer of the rules — the United States — was now among those breaking them. The UNCLOS position on Hormuz was a further instance of the same logic: Singapore would ground its positions in international law regardless of which great power was on the legally problematic side of any given dispute. This consistency was costly in specific cases — it drew criticism from Malaysia and other ASEAN neighbours on Hormuz, and it risked friction with Washington on the trade issue — but it was also Singapore's most durable reputational asset. A Singapore that bent its principles when under pressure from a powerful ally was a Singapore whose principles were not worth defending; and a Singapore whose principles were worthless had no distinctive foreign policy identity at all.

The "pragmatic" dimension was where Wong diverged most clearly from a purely principled posture. Singapore did not retaliate against US tariffs despite the legal and economic case for doing so. It did not join coalitions of states opposing US measures. It did not publicly associate itself with Chinese positions on trade liberalisation, even when those positions superficially resembled Singapore's own. It engaged the USTR process, submitted detailed legal and factual responses to the Section 301 investigation, and maintained the operational bilateral relationship — including defence cooperation, intelligence sharing, and SAF training — at its full level throughout the trade dispute. The pragmatic calculus was clear: the long-term value of the bilateral security relationship exceeded the short-term cost of the tariffs, and actions that damaged that relationship in pursuit of trade principle would be disproportionate to the stakes.

The "proportionate" dimension required calibration that was necessarily judgement-dependent. Wong's public statements on the tariffs were frank but not hostile. His characterisation of the tariffs as "not actions one does to a friend" was pointed, but it did not escalate to threats of retaliation or demands for immediate FTA renegotiation. His statements on the Hormuz crisis condemned the triggers without endorsing the response, avoided the appearance of aligning with either the US-Israeli or Iranian position, and maintained ASEAN's collective engagement as the preferred multilateral channel. Proportionality, in this formulation, meant matching the intensity of Singapore's response to the actual stakes rather than to the emotional valence of the offence — a form of strategic discipline that Lee Kuan Yew had practised instinctively and that Wong was now required to demonstrate in his own right.

The S Rajaratnam Lecture of 16 April 2025 — the most important foreign policy speech of Wong's first year as Prime Minister — situated Singapore's response to the Trump 2.0 challenge within a longer historical narrative. Wong invoked Rajaratnam's foundational insight that Singapore's survival required not merely the management of immediate threats but the construction and maintenance of an international order in which small states could exist without being dominated by large ones. Where Rajaratnam had written in 1965 of Singapore's need to be more than an "uninspired compromise between the cold war giants," Wong was writing in 2025 of Singapore's need to be more than a passive casualty of the rules-based order's collapse. The "safe harbour" metaphor was carefully chosen: it acknowledged the turbulence of the external environment while claiming for Singapore a distinctive role as a stable, predictable, law-abiding node in a fragmenting world — a role that served both Singapore's economic interests and its foreign policy identity.

8. The China-Triangulation Dimension — How Singapore Manages Both

Among the strategic questions that the Trump 2.0 period posed most acutely for Singapore was whether its consistent refusal to choose sides between Washington and Beijing could survive a moment when Washington was actively seeking to force that choice. The Trump administration's trade architecture, its technology restrictions, its pressure on Southeast Asian states to limit engagement with Chinese 5G providers and semiconductor supply chains, and its framing of the Indo-Pacific as a theatre of explicit US-China competition all pushed in the direction of binary alignment. Singapore's insistence that it would not choose was not merely a diplomatic preference; it was a statement about Singapore's structural reality. Singapore's largest trading partner was China; its ultimate security guarantor was the United States. Neither relationship was dispensable, and pretending otherwise would have been both analytically false and strategically dangerous.

The management of China triangulation during the Trump 2.0 period required Singapore to maintain three simultaneous postures that were in some tension with each other. First, Singapore continued to deepen the bilateral economic relationship with China: the Singapore-China Comprehensive Partnership, inaugurated government-to-government projects in Chongqing, Suzhou, Guangzhou, and Tianjin, and the upgraded CSFTA (China-Singapore FTA) provided the institutional scaffolding for continued economic integration even as the US-China rivalry intensified. Second, Singapore maintained its position — publicly articulated and internally consistent — that it did not endorse China's positions in the South China Sea disputes, did not accept Beijing's characterisation of Taiwan as an exclusively internal matter, and evaluated Chinese policy actions by the same international-law framework it applied to everyone else. Third, Singapore resisted any association of its criticism of US tariffs with alignment toward China, going out of its way to note in public statements that it was China's economic coercion of smaller states — most vividly demonstrated in the Terrex affair of 2016-2017 (see SG-F-23) — that had done as much as any other single factor to undermine confidence in the rules-based order from the Beijing side.

The tariff regime created a specific triangulation challenge. China responded to the Trump tariffs with retaliatory measures of its own, and a substantial secondary literature developed around whether Singapore would benefit from or be harmed by trade diversion. The honest answer was: both, depending on the sector and time horizon. In the short term, Singapore's role as a neutral connector economy meant that supply chains rerouting away from direct US-China bilateral trade sometimes passed through Singapore, generating transhipment, warehousing, and value-added processing activity. The RSIS analysis of August 2025 identified Singapore as a net short-term beneficiary of trade diversion in several key product categories, particularly in electronics components and pharmaceutical intermediate goods. In the medium term, however, the threat of Section 301 scrutiny — specifically the circumvention allegation — created regulatory risk that Singapore had to manage carefully to avoid becoming the target of punitive action designed to prevent that trade diversion.

The USTR Section 301 investigation's focus on "circumvention" was therefore not merely an accusation that Singapore was cheating on trade rules; it was a signal that Washington viewed Singapore's neutrality as a form of arbitrage that diluted the strategic effect of its China-targeting tariffs. This was, in a structural sense, accurate. Singapore's entrepôt model had always been predicated on neutral connectivity — on being useful to all parties regardless of their political disputes with each other. When those political disputes between the US and China became economic wars fought through tariffs and supply-chain restrictions, Singapore's neutral connectivity inevitably made it a conduit that both sides might wish to narrow or redirect. Managing this pressure without abandoning the entrepôt model required Singapore to demonstrate compliance with trade facilitation rules, anti-circumvention enforcement, and origin verification at a level of institutional rigour that had not previously been demanded.

Singapore's management of China relations also required care on the Taiwan dimension. The Trump administration's ambiguity on Taiwan — simultaneously more hawkish in its arms sales and deterrence rhetoric than its predecessors, and more explicitly transactional in its language about what Taiwan would need to pay for American protection — created new uncertainty about the credibility of US deterrence commitments. Singapore's position on Taiwan had always been one of profound caution: it recognised the PRC as the sole legal government of China and did not maintain official relations with Taiwan, while sustaining substantial economic ties, hosting Taiwanese investment, and conducting quiet educational and cultural exchanges that reflected the reality of Taiwan's separate governance. Any scenario in which Taiwan Strait tensions escalated to military confrontation would confront Singapore with the hardest version of the side-choosing dilemma — one for which no diplomatic formulation would be adequate. Wong's public statements on Taiwan were accordingly sparse: Singapore consistently called for peaceful resolution and restraint by all parties, and consistently declined to elaborate beyond that.

9. Defence Cooperation — Singapore Armed Forces Training in the US, F-35 Procurement

The defence dimension of the Singapore-US relationship is the least publicly visible and the most structurally robust component of the bilateral partnership. It has survived the Trump 1.0 administration, survived the tariff disruptions of Trump 2.0, and continues to operate at a level of institutionalised cooperation that insulates it substantially from the political turbulence at the top of both governments.

The foundation of the defence relationship rests on several interlocking elements. The 1990 MOU on facilities access was extended and deepened by the 2005 Strategic Framework Agreement, which formalized a comprehensive security partnership covering intelligence sharing, counter-terrorism cooperation, non-proliferation, and military-to-military engagement. Changi Naval Base, completed in 2001 with an aircraft carrier pier, provides the US Navy's Seventh Fleet with the deepest-draught berthing facilities in Southeast Asia. The US Navy rotational deployment of Littoral Combat Ships (LCS) to Singapore, operating out of Changi, represents a sustained forward presence that benefits both parties: Singapore gains the deterrent value of US naval proximity, and the US gains a logistics and maintenance hub that extends the operational reach of its Pacific fleet.

The SAF's extensive training footprint in the United States represents both a defence necessity and a strategic investment. Singapore's small geographic size — approximately 730 square kilometres — means that realistic large-scale military training, including air combat manoeuvres, armoured operations, and combined-arms exercises, cannot be conducted domestically. The SAF maintains training arrangements at multiple US facilities: the Republic of Singapore Air Force conducts pilot training at Luke Air Force Base in Arizona, and RSAF units conduct advanced training at other continental US bases . The Singapore Army conducts armoured and combined-arms training in the US Southwest. These arrangements provide the SAF with training environments that their domestic geography cannot supply, while simultaneously creating a community of shared professional experience between Singapore and US military personnel that deepens the relationship at the operational level.

The F-35 procurement is the single most significant defence acquisition in Singapore's history and the most visible symbol of the depth of the US-Singapore defence relationship. Singapore's decision to purchase the F-35 Joint Strike Fighter — announced in principle in early 2019 during the Trump 1.0 administration, with a formal letter of acceptance following in 2021 — represented both a significant defence capability upgrade and a strategic signal. The F-35 is a fifth-generation, stealthy, network-centric aircraft that can only be operated within the US-managed ALIS (Autonomic Logistics Information System, subsequently renamed ODIN) digital ecosystem. A country that procures the F-35 is committing to sustained, deep interoperability with the US military for the operational lifetime of the platform — typically several decades. The F-35 decision was therefore not merely a procurement choice but a statement about the long-term direction of Singapore's defence relationship with the United States that went well beyond any particular administration's tenure.

. The procurement's implementation continued through the Trump 2.0 period without disruption, reflecting the defence establishment's insulation from the trade-policy turbulence at the political level. The US Defence Security Cooperation Agency processed the associated Letters of Offer and Acceptance; the MINDEF managed the contractual relationship with Lockheed Martin; and the RSAF prepared its pilot cadre and ground infrastructure for the transition.

The Trump administration's transactionalism — its tendency to view defence relationships through a burden-sharing and industrial procurement lens — was in practice relatively benign for Singapore. A country that buys American F-35s, maintains US naval base access, hosts US Air Force training, and sustains an extensive military-to-military engagement programme is generating exactly the kind of tangible bilateral ledger that transactional logic can value. Singapore's defence spending as a percentage of GDP — consistently around 3 per cent, one of the highest proportions in Southeast Asia — further reduced the political surface area for burden-sharing complaints. Where Trump's transactionalism created difficulties for allies like South Korea, Japan, and the European NATO states, whose defence spending relative commitments were more easily questioned, Singapore's compact size and concentrated spending largely immunised it from that particular form of pressure.

The Hormuz crisis added a new operational dimension to the bilateral defence relationship. US naval assets in and around Singapore and at Changi were part of the broader force disposition that the US Seventh Fleet deployed in response to the Iranian Hormuz closure. Singapore's role was logistical and facilitative rather than combat-operational — providing maintenance, supplies, and port access to US naval vessels transiting the region — but that facilitating role was itself strategically significant. It demonstrated that the bilateral defence relationship retained its operational content even in the context of a conflict that Singapore had publicly declined to endorse.

10. Outcomes through May 2026

By May 2026, Singapore's relationship with the United States under Trump's second administration had traversed sixteen months of exceptional stress without structural rupture. The aggregate picture was one of significant disruption to the economic dimension of the relationship — trade costs had risen, the USSFTA's zero-duty architecture had been effectively suspended, and a Section 301 investigation added medium-term uncertainty — alongside remarkable continuity in the security and defence dimension. The bilateral defence relationship continued at its established institutional level; SAF training in the US continued; F-35 procurement proceeded; Changi's operational access remained intact; and the intelligence and counter-terrorism cooperation channels functioned.

Singapore's GDP performance through 2025 — full-year growth of 5.0 per cent, significantly above the consensus forecast at the time of Liberation Day — was a source of genuine relief for the government and confounded the more apocalyptic predictions. The SERT's economic diversification work had accelerated, with RCEP implementation generating additional intra-Asian trade flows, new bilateral engagements with India, the Gulf Cooperation Council, and several African economies providing alternative market exposure, and Singapore's role as a wealth management and professional services hub proving resilient to the tariff shock. The "GDP paradox" did not mean that the tariff regime was harmless — the distributional effects on specific exporters and sectors were real — but it did validate the government's assessment that Singapore's structural diversification was sufficient to absorb the shock without economic crisis.

The Hormuz crisis remained unresolved as of May 2026 . The US naval blockade of Iran, announced on 13 April 2026, represented an ongoing military commitment whose duration and outcome were uncertain. Singapore's energy position had been cushioned by stockpile drawdowns and alternative supply arrangements, but the medium-term costs of sustained elevated oil prices and Jurong Island refinery feedstock disruptions were real. The government's S$1 billion support package had provided household cushioning, but the structural question of Singapore's refinery sector's dependence on Middle Eastern crude remained unaddressed at the policy level.

The Section 301 investigation outcome was also pending as of May 2026. The USTR had received Singapore's formal submission, bilateral diplomatic engagement had continued, and the statutory timeline for a Section 301 determination had not yet elapsed. The range of possible outcomes ran from a finding of no violation (the most optimistic scenario), to a negotiated bilateral arrangement in which Singapore made specific commitments on digital services taxation and origin verification in exchange for closure of the investigation (the most likely scenario of some form of negotiated outcome), to a finding of violation with retaliatory tariffs (the most damaging scenario, which would represent a qualitative escalation beyond the baseline tariff regime).

11. Conclusion

Singapore entered the Trump 2.0 era as one of the most diplomatically sophisticated and economically resilient small states in the world, and the evidence through May 2026 suggests that these qualities were sufficient to navigate the period without permanent damage to the bilateral relationship or the Singapore economy. But the navigation was neither easy nor costless, and the structural challenge it revealed was deeper than any specific tariff rate or investigation outcome.

The Trump 2.0 episode demonstrated that the rules-based international order — the system of multilateral institutions, treaty commitments, and shared legal norms that Singapore had helped to build and had treated as the foundation of its national strategy since 1965 — could not be assumed to hold indefinitely against the preferences of the most powerful state in the system. The USSFTA, a legally binding international trade agreement, was effectively suspended by executive order. The WTO dispute settlement mechanism, already weakened by the first Trump administration's blocking of Appellate Body appointments, offered no timely remedy. The UNCLOS framework that Singapore invoked on Hormuz was the law, but its enforcement depended on the willingness of states with naval power to uphold it — and the state with the most relevant naval power was itself contesting the legal framework on trade while enforcing it on navigation.

This structural reality — that rules-based orders are ultimately underwritten by the preferences of powerful states and cannot survive their sustained opposition — was not new to Singapore's foreign policy community. Lee Kuan Yew had understood it from the beginning. Bilahari Kausikan had written about it explicitly. What was new in the Trump 2.0 period was that the United States itself was the challenger, and that the challenge was not to a specific rule that Singapore disagreed with but to the idea of binding rules in international trade altogether. Singapore's response — maintain the principle, adapt the practice, invest in the bilateral relationship at every layer, diversify the economic architecture — was the only available response for a small state without retaliatory capacity. Whether it would be sufficient to protect Singapore's prosperity and security across a potentially extended period of US ambivalence toward the rules-based order was a question that May 2026 had not yet resolved.

12. Spiral Index

This document connects to the following thematic threads running through the corpus:

Small-state survival logic: The foundational vulnerability-resilience dynamic documented in SG-M-03 (Vulnerability Philosophy) and SG-F-01 (Foreign Policy Foundations) manifests in acute form in the Trump 2.0 tariff response. Singapore's refusal to retaliate, its investment in diversification, and its maintenance of bilateral channels under pressure are all expressions of the small-state logic.
Rules-based order as existential infrastructure: The corpus's treatment of Singapore's commitment to UNCLOS (SG-F-10), the South China Sea legal contest (SG-F-12, SG-F-23), and the Russia-Ukraine sanctions decision (SG-F-19) all reflect the same underlying logic as Singapore's response to the Hormuz closure and the tariff regime: the rules matter precisely because Singapore cannot protect itself by power alone.
Lawrence Wong transition: This document is a primary case study in Wong's foreign policy doctrine as described in SG-F-28, showing how the "principled, pragmatic, proportionate" formulation operated under real-world stress in his first sixteen months as Prime Minister.
Trade architecture under strain: SG-O-02 provides the detailed economic analysis of the tariff regime's impact on Singapore. This document provides the bilateral diplomatic and strategic context within which that economic impact was managed.
Hormuz as stress-test: SG-F-27 provides the comprehensive treatment of the Hormuz crisis. This document connects that crisis to the bilateral US-Singapore relationship dimension — specifically, the challenge of being structurally dependent on US naval power while publicly maintaining equidistance from the US-Israeli operation that triggered the crisis.
Defence as relationship anchor: The SAF training and F-35 procurement threads documented here connect to SG-F-21 (Defence Doctrine) and SG-D-03 (National Service), illustrating how Singapore's defence investment functions as both military capability and diplomatic capital.

SG-F-29: Singapore and the Second Trump Administration — Tariffs, Hormuz, and the Strategic Reset (2025–2026)