US tariff rebuild poses modest but escalating risk—UOB

The forced labour proposal is only the first plank in a broader tariff rebuild.

Singapore is amongst 60 economies facing proposed US tariff increases under a new Section 301 action, but UOB warns the immediate impact is modest compared to what may follow as Washington rebuilds a more durable trade architecture.

The assessment follows a 2 June proposal by the US Trade Representative (USTR) to impose new tariffs of 10% or 12.5% on imports from 60 economies under Section 301 of the Trade Act of 1974, citing failures to enforce bans on goods produced with forced labour. Singapore was amongst the economies listed, facing the higher 12.5% rate.

UOB said the immediate tariff impact is modest. The proposed Section 301 duties are broadly designed to replace the temporary 10% tariff imposed under Section 122, which is scheduled to expire in late July 2026. Bloomberg estimated the effective US tariff rate would rise by only around 0.5 percentage points from its current level of 10.7% once the transition is complete. Written comments on the proposal are due by 6 July, with USTR hearings scheduled for 7 July.

Singapore has already pushed back on both fronts. The Ministry of Trade and Industry (MTI) submitted written responses to the USTR, stating that Singapore does not have forced labour in its supply chains and rejecting claims of industrial overcapacity. MTI cited provisions under the Penal Code 1871 and the Prevention of Human Trafficking Act 2014 as evidence of enforceable legal prohibitions, and noted that Singapore does not appear in US Department of Labor listings of goods produced with forced or child labour.

The Singapore Business Federation, in submissions prepared with 10 trade groups, separately argued that Singapore's policies do not breach Section 301 standards and pointed to a US trade surplus with Singapore that reached approximately S$42.3b in 2025, undermining claims that US firms are disadvantaged.

On overcapacity, MTI questioned the USTR's characterisation of Singapore's trade position, noting that US data showed a combined goods and services deficit of S$37.6b with Singapore in 2024, not a surplus as the USTR stated. The ministry also said industrial space occupancy remains at around 90%, countering claims of expanding manufacturing capacity.

UOB warned that the forced labour proposal should be viewed as only the first element of a broader rebuild of the US tariff architecture. In parallel, the USTR has initiated separate Section 301 investigations into structural excess capacity and manufacturing overproduction across 16 economies, including Singapore.

UOB said this second track may ultimately prove more consequential for regional manufacturing economies, particularly if it results in sector-focused duties targeting industries where Asia is deeply integrated into global supply chains.

The bank also flagged potential Section 232 semiconductor actions expected around August, which could be stacked on top of Section 301 duties and carry no legal expiry. UOB said this would present material risk to Singapore, Malaysia, and Vietnam given their deep integration in global chip and electronics supply chains.

Whilst supply chain diversification into ASEAN is expected to continue, UOB said sourcing decisions are likely to become more selective at the intra-ASEAN level as proposed duties differentiate across the region. For Singapore, which the SBF has described as primarily a re-export hub rather than a domestic production base, the risk is less about direct manufacturing exposure and more about disruption to the logistics and supply chain intermediary role the city-state plays in global trade networks.

For Singapore specifically, UOB identified semiconductor and electronics exposure as the most material near-term risk. Potential Section 232 actions on chips and electronics, expected around August, could be stacked on top of Section 301 duties and carry no legal expiry, presenting a distinct threat to one of Singapore's most significant export sectors. 

The immediate tariff burden may be modest, but UOB's assessment is that the policy direction is materially more hawkish than the headline numbers suggest, and the architecture being built leaves significant room for escalation in the months ahead.