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The producers call the IMO's definition of Brazil corn-ethanol carbon footprint as a milestone.

Industry executives said that the International Maritime Organization decision defining Brazilian corn ethanol's carbon foot print is a historic step. It could position maritime transport as a future major market for this?sector.

The IMO set the default value for the carbon footprint of Brazilian corn ethanol at 20.8 grams CO2e per megajoule in May. This was specifically referring biofuels produced from the second or intermediate corn crop of the country.

According to the IMO, the average greenhouse gas fuel consumption in shipping is currently 93.3 grams per megajoule.

Gustavo Mariano is vice president of Inpasa's trading division. He said that the IMO has defined a value for Brazilian corn ethanol, which is a major step in establishing regulations to regulate lower-carbon fuels.

Mariano, in an interview said that the event was "historic and symbolic" and confirmed corn ethanol's position as a viable fuel for decarbonization.

Brazil's ethanol production has been dominated for decades by sugarcane farmers. According to the industry association UNEM however, corn ethanol production soared to nearly 10 billion liters during the 2025/26 seasons, up from 2,65 billion liters when the decade began.

Rafael Abud is the chief executive officer of FS Fueling sustainability, a corn ethanol manufacturer. He said that once biofuels are approved for shipping, producers may benefit from possible premiums.

Abud stated that "we have invested heavily in every aspect of our product to decarbonize it," citing efforts to reduce emissions from biomass, industrial efficiency, and a project to combine bioenergy and carbon capture and storage, which could make FS ethanol carbon-negative. Brazil's second crop corn ethanol won't compete with other biofuels like sugarcane and biodiesel because of the size of the shipping industry, executives say. Instead, it will complement these fuels.

Mariano stated that "if the global bunker market was converted into ethanol, it would equal almost 400 billion liters," Mariano. These volumes are so huge that we require all biofuels. Reporting by Oliver Griffin, Editing by Will Dunham

(source: Reuters)