Trade policy and geopolitical tensions are adding fresh pressure to procurement as tariffs raise the cost of metals, packaging and industrial inputs. Buyers are responding with tighter contract structures, broader supplier networks and more frequent reviews of sourcing strategies to manage rising cost volatility.
Metals Tariffs Drive Structural Cost and Sourcing Shifts
Aluminum and steel inputs for cans have become a real-time case study in how tariff policy cascades through procurement economics. With Section 232 duties on aluminum and steel doubled to 50 percent in 2025, canmakers dependent on imported primary aluminum and tinplate report unavoidable cost pass-throughs into food and beverage pricing. Industry data cited at a recent supply chain outlook event shows that while beverage cans largely rely on recycled material, they still require primary metal that has historically come from Canada. As tariffs increased, some Canadian smelters diverted volume to less penalised destinations such as Europe, forcing US buyers of can sheet to tap Gulf-region producers at record import levels.
The same pattern plays out in tinplate steel, where the US sources the majority of feedstock from abroad and domestic mills have little incentive to expand capacity in what is effectively a niche product. Procurement teams are therefore paying tariff-inflated prices on a material representing a tiny share of overall steel output, with limited ability to substitute. Public inflation data shows canned foods rising faster than fresh or frozen categories, a differential industry advocates link partly to this tariff burden. In response, trade bodies are pressing for targeted relief on tinplate and primary aluminum while also calling for equivalent duties on imported filled cans that currently bypass these cost uplifts. For commercial teams, this asymmetry highlights the need to revisit landed cost models and evaluate whether contract terms on finished goods imports are masking embedded advantages over domestic sourcing.
Beyond immediate price levels, these dynamics are reshaping the supplier landscape that contracts must govern. As Gulf-region suppliers capture a larger share of US primary aluminum imports, procurement faces higher geopolitical exposure and routing risk through the Strait of Hormuz. At the same time, some Asian producers, including in China, are lifting output to exploit tightness elsewhere, creating a dual risk of short-term scarcity followed by potential overcapacity. That combination complicates index selection, reset frequency and allocation clauses in long-term agreements. Category strategies that once assumed stable North American supply must now factor in sanctioned or conflict-prone origins, adding weight to clauses covering force majeure, alternative sources and rapid repricing.
Plastics tariffs, Iran Conflict and USMCA Uncertainty Raise Planning Risk
Plastics markets show a more uneven but still material impact from tariff and security developments. Long-standing Section 301 duties on Chinese goods continue to depress some plastic packaging imports, with trade data indicating lower inbound volumes of polyethylene sacks and bags from China compared with a year earlier. For equipment, manufacturers have secured temporary relief from certain Section 232 measures through to late 2027, but that sunset date itself introduces planning friction for capital investment decisions. Companies weighing new extrusion, molding or recycling assets must now stress-test payback assumptions under multiple tariff scenarios on machinery, components and spare parts.
Policy proposals add another layer of complexity. A floated plan to impose additional tariffs in the low double digits on imports from countries lacking forced labour prohibitions would extend compliance and diligence requirements deep into procurement and legal workflows. Buyers would need to integrate human-rights screening more tightly into supplier qualification, country-of-origin validation and routing choices to avoid unexpected duty exposure. For plastics processors and brand owners already responding to forced labour enforcement actions in other sectors, this points to a future where social compliance status directly affects commodity cost competitiveness, not just reputational risk.
The conflict involving Iran is amplifying volatility across both metals and resin. Missile strikes on major Gulf aluminum producers earlier this year disrupted output and pushed benchmark prices sharply higher before ceasefire expectations drove a rapid pullback. Each swing forced revaluation of indexed contracts and re-opened cost pass-through discussions with downstream customers. Resin markets, while buffered in the US by natural gas-based feedstock and robust domestic capacity, still respond to global crude-linked pricing. Producer price indices show double-digit increases in some resin categories over consecutive months, underscoring how quickly energy shocks transmit to polymer costs even when physical supply is secure.
Trade architecture is also in flux. The US decision not to roll over the current United States-Mexico-Canada Agreement as-is injects uncertainty into one of the largest integrated value chains for plastics and metals. Mexico and Canada represent the top two export destinations for US plastic products, and are critical partners for metal flows and finished packaging. Industry voices argue that a renegotiated framework could tighten trilateral alignment and focus more squarely on overcapacity from China, particularly in steel, but the transition period itself poses risk. Without clarity on future rules of origin, tariff schedules and dispute mechanisms, long-horizon sourcing and investment commitments are harder to underwrite.
Trade Policy Will Demand Continuous Commercial Review
Procurement teams are likely to review sourcing strategies more frequently as tariff measures, exemptions and trade agreements evolve. Maintaining current landed-cost models, regularly validating supplier competitiveness and updating contract terms alongside policy changes can help organizations respond more quickly when shifts in trade rules alter the economics of key commodities or sourcing regions.