Global investment in future mobility — spanning electric vehicle manufacturing, battery production, charging networks, autonomous driving R&D, and mobility services — is accelerating at an unprecedented pace. Yet, trade policy and tariffs are emerging as decisive forces that could reshape the scale, structure, and direction of this investment wave.
As of September 2025, Korean automobiles face a notably steep 25% import tariff in the US, distinguishing them from their European and Japanese competitors, who benefit from reduced rates of 15%.
Despite a preliminary agreement between South Korea and the U.S. earlier in the summer—centered on large-scale investments and a potential tariff reduction—persistent disagreements over the specifics of these arrangements have stalled any meaningful progress. As a result, the elevated duties on Korean vehicles remain firmly in place.
The impact on Korea’s automotive industry is profound.
Nearly 50% of all Korean car exports are destined for the U.S. market, with Hyundai and Kia alone shipping close to one million vehicles annually.
Yet, compared to Japanese manufacturers, Korean automakers have been slower to localize production within the US. This lower level of domestic manufacturing exposes Korean brands to heightened tariff risks. The immediate effect has been a spike in prices for Korean-made vehicles, which has eroded the price competitiveness of lower-cost models and led to a tangible reduction in export volumes.
It is not just the carmakers who suffer—the aftershocks are acutely felt among Korean automotive parts suppliers.
The U.S. government has gradually expanded the range of imported components subject to tariffs, putting immense financial pressure on small- and medium-sized Korean suppliers.
While relocating production or increasing local content in North America offers a potential workaround, such measures demand capital and technical expertise that smaller companies can seldom muster. For these suppliers, the tariff environment is more than a temporary challenge—it constitutes a structural threat to their survival.
A Simple Projection Model
Using 2025 as a baseline, we estimated annual investments across five major segments of the mobility ecosystem:
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EV Manufacturing Capex: $60 billion
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Battery Capex: $75.6 billion
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Charging Infrastructure: $10.8 billion
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AV/ADAS R&D: $25 billion
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Mobility Services: $15 billion
This baseline yields a combined $187.4 billion in global spending for 2025. From there, two scenarios were modeled over the 2025–2030 period:
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No Tariffs Scenario — assuming relatively smooth trade relations and continued globalization of supply chains.
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With Tariffs Scenario — reflecting sustained U.S. tariff pressure and possible retaliatory measures, leading to localization, duplicated investments, and slower demand growth.
Diverging Investment Paths
In the No Tariffs scenario, strong growth is driven by rapid scaling of charging networks (+20% CAGR) and steady expansion in EV production, batteries, and mobility services.
By contrast, the With Tariffs scenario shifts capital toward localized EV and battery capacity (+10–14% CAGR), while slowing growth in demand-driven segments like charging infrastructure, AV/ADAS R&D, and mobility services.
The result is a different composition of total spending:
| Segment | Cumulative 2025–2030, No Tariffs (USD bn) | With Tariffs (USD bn) | Difference |
|---|---|---|---|
| EV Manufacturing Capex | Higher growth under tariffs | Shift to localization | |
| Battery Capex | Strongest boost from tariffs | Driven by redundancy | |
| Charging Infrastructure | Sharply lower | Demand suppressed | |
| AV/ADAS R&D | Lower trajectory | Innovation slowed | |
| Mobility Services | Declines markedly | Capital intensity reduced | |
| Total | Larger in No Tariffs case | Smaller in Tariffs case | Global drag |
Strategic Implications
The numbers tell a clear story: tariffs do not simply raise costs — they reshape the allocation of capital across the mobility ecosystem.
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Winners under tariffs: Large incumbents with capital to localize production, particularly in EV assembly and battery plants.
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Losers under tariffs: Demand-sensitive sectors like charging networks and emerging mobility services, where higher costs and weaker adoption undermine investment cases.
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Innovation risk: R&D in autonomy and digital mobility platforms is squeezed, as firms divert capital toward supply-chain compliance rather than next-generation technology.
The Big Picture
The future of mobility hinges not only on technology breakthroughs but also on the geopolitical environment. If tariffs persist, the industry could face a fragmented, regionally duplicated structure — higher on cost, lower on efficiency, and slower in adoption. If tariffs ease, global supply chains can continue to deliver scale efficiencies and accelerate the energy transition.
In short, trade policy has become one of the most powerful variables in the mobility equation. Whether the industry unlocks its full potential or remains trapped in fragmented growth will depend as much on political choices as on technological ones.
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