Brazil's growing ethanol industry is a likely target for "reciprocal" US tariffs that President Donald Trump plans to impose on products from countries that he says discriminate against US imports.
In announcing the plan Thursday to raise US import tariffs to the same level foreign countries charge on US exports, Trump did not specify which countries and products would face the new levies. But a White House fact sheet specifically mentions Brazil's treatment of US ethanol as an unfair practice worth addressing. "The US tariff on ethanol is a mere 2.5pc. Yet Brazil charges the US ethanol exports a tariff of 18pc," the White House said.
The US produces more ethanol than any other country, almost all derived from corn. Brazil, the world's second largest ethanol producer, largely uses sugarcane as a feedstock but has a fast-growing corn ethanol industry, too.
The disparity in tariff rates has long frustrated US producers, who have become reliant on export markets since ethanol's growth in the US is limited by rising vehicle fuel efficiency, electric vehicle adoption and regulatory constraints on higher blends. The US exported more than 1.9bn USG of ethanol last year according to the Renewable Fuels Association, an all-time high.
Renewable Fuels Association general counsel Ed Hubbard told Argus last week that his organization raised the issue of Brazilian tariffs with Trump transition staffers, and the office of senator Chuck Grassley (R-Iowa) said he discussed the same at a recent meeting with Jamieson Greer, Trump's nominee to be US trade representative. Greer said at a recent Senate hearing that Brazil's tariff on US ethanol was among his top priorities.
Federal agencies are planning to review trade disparities and report back by 1 April, potentially giving countries like Brazil some time to consider policy changes that might avoid tariffs. Hubbard said he sees the threat of tariffs as a tool to bring Brazil back to the negotiating table on reducing its own restrictions, potentially allowing more US ethanol to enter the country and meet increasingly ambitious national targets for biofuel adoption.
At the same time, Brazil could negotiate for changes to US trade barriers, such as a tariff rate quota system for sugar imports and a new 25pc tariff on steel and aluminum imports.
If the US does ultimately increase taxes on Brazilian ethanol, trade flows might not change much in the near term. Ethanol trade between the two countries has already dropped off significantly, and the US is oversupplied with renewable fuels used to meet federal blend mandates. While essentially all foreign ethanol in the US is from Brazil, the US imported less fuel ethanol in 2024 than in at least 30 years.
But new tariffs would hurt LanzaJet, a US biofuel producer with a plant that imports Brazilian ethanol and refines it into sustainable aviation fuel (SAF). While the company says it can and does use other feedstocks, federal and state clean fuel programs treat Brazilian sugarcane ethanol as lower-carbon. LanzaJet thus earns larger subsidies for producing fuel from sugarcane ethanol than if it used more corn ethanol, which is generally too carbon-intensive to qualify for a new US biofuel tax credit.
"Tariffs impacting nascent industries like SAF will undoubtedly hurt the United States' potential to continue to lead in this space — limiting our ability to import necessary resources and export our own for the global market, given aviation is a global industry," LanzaJet vice president for corporate affairs Meg Whitty said.
