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WASHINGTON—In June, the Office of the US Trade Representative unveiled preliminary findings of an ongoing Section 301 investigation, proposing a new 25 percent tariff on various Brazilian products.
This is only the latest development in what has been a very up-and-down year for US-Brazil trade (as our trade dashboard shows). It began with an initial series of tariffs applied throughout 2025, followed by the US Supreme Court’s February 2026 decision that limited the Trump administration’s use of the International Emergency Economic Powers Act to implement tariffs. Soon after, the administration imposed a global 10 percent tariff under Section 122, and now, Section 301 tariffs are taking shape.
Tariffs applied throughout the year have changed the trajectory of trade, commerce, and relations more broadly between the two countries. Yet, the two economies remain deeply intertwined, particularly in key sectors such as agriculture, metals and manufacturing, and aerospace. Here’s how the new proposed tariffs might further alter that relationship.
A new round of tariffs
Tariff pressure on Brazil has risen over many months. But Washington isn’t applying that pressure equally across the board, since it is treating products from Brazil in different ways. The proportion of Brazilian exports subject to US tariffs has shifted since Liberation Day, the day in April 2025 when Trump announced a sweeping list of tariffs. Today, around half of all Brazil’s exports are exempt (if applying today’s tariff codes to Brazil’s 2025 exports).
Despite multiple changes to tariff rates throughout the past year, the distribution of exempted Brazilian goods—even if the Section 301 tariffs were imposed—is set to remain broadly the same, at just over 50 percent. Yet the tariff pressure (the ratio between the tariffs charged and the total value of trade) is still set to rise significantly, given that around a third of exports, ones currently subject to a 10 percent tariff, might soon face a 25 percent rate instead.
A new bend in the track of a rollercoaster year
US imports of Brazilian products have declined this year in response to the succession of US tariff measures, which raised costs for Americans and reduced demand. Yet, despite the ongoing trade tensions, US exports to Brazil have continued to grow along the pre-2025 trendline. Consequently, in the year since Liberation Day, the US bilateral trade surplus with Brazil has more than doubled.
The chart below measures trade by net weight rather than dollar value, offering an alternate view of how the volume of goods has changed without the distortion of commodity price swings. To be sure, this weight could fluctuate due to several factors beyond changes in trade volume, such as a change in the assortment of goods traded. However, as of March 2026, yearly US imports from Brazil measured by weight stood approximately 10 percent lower than they had been in January 2025. At the same time, the total weight of US products heading for Brazil was 10 percent higher.
But the aggregate picture hides nuance, in that some products have been hit harder than others by the successive tariff waves. An analysis of US imports from Brazil by Broad Economic Categories—a UN-created classification which groups goods by their principal end use, including capital, intermediate, and consumer goods—shows that the weight of intermediate products has dropped off most dramatically. If that decline is a result of the tariffs, that would mean that the measures have hit manufacturing supply chains more than consumer-facing products.
In the past, the trade relationship has included strong flows of intermediate products, with only a minority of trade consisting of finalized consumer products. For examples of these intermediate products, look to Brazilian coffee beans, which are imported in bulk and then ground and mixed with other ingredients by US coffee roasters, or US advanced machinery components, which are used in the Brazilian automotive and aerospace industries. Throughout their trade relationship, the two countries have consistently exchanged inputs that are then used by recipient businesses to add value before re-exporting them or selling them to consumers as a final product.
A deeper look shows which intermediate products were most affected. Comparing US imports from Brazil in the year before Liberation Day and the year after, two of the hardest-hit categories were “basic food and beverages for industry” and “elaborated food and beverages for industry,” which saw the largest declines in net-weight supply.
More importantly, the category of “elaborated industrial inputs” represented almost 50 percent of the total net weight of yearly imports before Liberation Day. In the year that followed, the net weight of US imports from Brazil in this category fell by 5.7 percent. That accounted for most of the fall in the net weight of US imports of Brazilian goods. This category includes key inputs such as metals, chemicals, wood and pulp, leather, and other industrial supplies that are used in value-added industrial processes in US manufacturing.
The authors would like to thank Apex Brazil, the Brazilian Trade and Investment Agency, for its support for this project.

Facts Only

* The Office of the US Trade Representative unveiled preliminary findings in June regarding a Section 301 investigation.
* A new 25 percent tariff was proposed on various Brazilian products.
* Tariffs were applied throughout 2025, followed by a February 2026 Supreme Court decision limiting the use of the International Emergency Economic Powers Act for tariffs.
* A global 10 percent tariff was imposed under Section 122.
* Around half of Brazil’s exports are exempt when applying today’s tariff codes to 2025 exports.
* The distribution of exempted Brazilian goods is expected to remain broadly the same, at just over 50 percent.
* Tariff pressure (ratio between tariffs charged and trade value) is set to rise significantly, with some exports facing a potential 25 percent rate instead of 10 percent.
* US imports of Brazilian products declined this year due to tariff measures raising costs and reducing demand.
* US exports to Brazil continued to grow along the pre-2025 trendline.
* The US bilateral trade surplus with Brazil more than doubled since Liberation Day.
* Yearly US imports from Brazil measured by weight stood approximately 10 percent lower in March 2026 than in January 2025.
* The net weight of US imports in the category of “elaborated industrial inputs” fell by 5.7 percent in the year following Liberation Day, accounting for most of the decline in overall net-weight supply.

Executive Summary

Preliminary findings from the Section 301 investigation proposed a new 25 percent tariff on various Brazilian products in June. This development follows a period of fluctuating trade relations between the US and Brazil, which included initial tariffs throughout 2025 and a subsequent Supreme Court decision limiting the use of certain economic powers. The distribution of exempted Brazilian goods remains broadly similar, with just over fifty percent remaining exempt despite the Section 301 tariffs being imposed. However, tariff pressure is projected to rise significantly, as roughly one-third of exports currently facing a 10 percent tariff might face a 25 percent rate.
Despite these trade tensions, the underlying economies remain deeply intertwined in key sectors like agriculture, metals and manufacturing, and aerospace. While US imports of Brazilian products have declined due to tariff measures, US exports to Brazil continued to grow along the pre-2025 trendline, causing the bilateral trade surplus to more than double since Liberation Day. Analysis of import weight shows a year-over-year decrease in US imports from Brazil, with US imports measured by weight falling approximately 10 percent compared to January 2025. Furthermore, intermediate products have been disproportionately affected; categories like “basic food and beverages for industry” and “elaborated food and beverages for industry” saw the largest declines in net-weight supply.

Full Take

The narrative presents a dynamic tension between high-level geopolitical tariff actions and the underlying economic reality of deep integration. The core pattern involves a strategic shifting of pressure: while the volume of trade itself shows shifts—declining US imports but growing US exports leading to a doubled surplus—the mechanism for applying that pressure is designed to escalate the cost structure, specifically targeting the complex supply chains rather than just the final goods. The focus on intermediate products reveals a systemic vulnerability; the largest weight losses occurred in industrial inputs, suggesting the trade friction impacts manufacturing supply chains more profoundly than consumer-facing transactions. This suggests an asymmetrical impact where specific industrial input flows are the primary vector for escalating dispute, while overall macroeconomic flows remain resilient or even grow. The implication is that multilateral pressure forces a restructuring within deeply embedded industrial dependencies, meaning external policy actions translate directly into internal supply chain reorganization under duress. What questions remain about whether this focus on intermediate inputs sufficiently captures the overall cost and relational shift in the bilateral relationship?

Sentinel — Human

Confidence

The text reads like an analysis synthesizing trade data regarding US-Brazil tariffs and supply chain shifts, exhibiting a nuanced flow that is characteristic of human-driven exposition rather than pure synthesis.

Signals Detected
low severity: Sentence length variance is noticeable; the text shifts between declarative statements and more complex analytical sentences.
low severity: The text flows logically from specific events (tariffs) to broad implications (trade trajectory) and then to detailed analysis (intermediate products).
low severity: References to specific dates, statistics (e.g., 50 percent exemption, 10 percent decline), and named categories suggest grounded reporting.
low severity: The structure suggests a complex synthesis of data points rather than pure LLM generation, focusing on interpreting statistical shifts (e.g., weight vs. dollar value).
Human Indicators
Incorporation of specific, cross-referenced trade metrics (net weight, Broad Economic Categories) and referencing institutional bodies (USTR, UN classification) suggests grounding in specialized data reporting.
The analytical pivot from political tension to supply chain specifics exhibits a narrative drive typical of investigative journalism.
What new tariffs would mean for US — Arc Codex