Estados Unidos es uno de los principales productores mundiales de soja, y este cultivo desempeña un papel fundamental en la economía agrícola del país. En la campaña comercial 2024/25, Estados Unidos produjo aproximadamente 118 millones de toneladas métricas de soja, lo que contribuyó significativamente al suministro mundial.
Las exportaciones son cruciales, representando históricamente entre el 40% y el 50% de la producción anual, siendo China tradicionalmente el mayor comprador. Sin embargo, en 2025, las exportaciones estadounidenses de soja se enfrentarán a una confluencia de desafíos, entre ellos la escalada de las tensiones comerciales, la feroz competencia internacional, la evolución de la demanda interna, las disrupciones logísticas y la intensificación de los efectos del cambio climático.
Estos problemas no sólo amenazan los volúmenes de exportación, sino que también exacerban las presiones financieras sobre los agricultores, lo que podría conducir a una reducción de la siembra, mayores costos de almacenamiento e impactos económicos más amplios en las comunidades rurales.
Uno de los problemas más acuciantes para las exportaciones estadounidenses de soja es la actual disputa comercial con China, que ha impuesto aranceles de represalia que socavan gravemente la competitividad. El arancel general de China sobre la soja estadounidense se sitúa en el 34 % en 2025, compuesto por un arancel de represalia del 20 %, un arancel de nación más favorecida (NMF) del 3 % y un impuesto al valor agregado (IVA) variable. Esto encarece considerablemente la soja estadounidense en comparación con la de sus competidores, lo que la excluye del mercado chino.
Históricamente, China importó el 28% de la producción estadounidense de soja durante los siete años previos a la guerra comercial de 2018, alcanzando un máximo del 31% en la campaña comercial 2020/21, representando el 60% de las exportaciones totales de soja estadounidense. Sin embargo, para la campaña comercial 2023/24, esta cifra se había reducido a tan solo el 22%, con exportaciones a China que totalizaron casi 25 millones de toneladas métricas, una cifra aún considerable, pero muy por debajo de su potencial.
La guerra comercial de 2018 sienta un precedente claro: las exportaciones estadounidenses de soja a China se desplomaron de un valor promedio de preguerra de 12.800 millones de dólares anuales a 4.700 millones de dólares en 2018/19 y 5.800 millones de dólares en 2019/20, lo que resultó en una pérdida anual estimada de 9.400 millones de dólares para los productores estadounidenses de soja, el 71 % del total de 27.000 millones de dólares afectados por las exportaciones agrícolas estadounidenses. En 2025, se avecinan riesgos similares, y las proyecciones indican que la escalada de aranceles bajo la actual administración podría poner en riesgo 12.800 millones de dólares en exportaciones estadounidenses de soja a China, afectando especialmente a estados del Medio Oeste como Iowa, Illinois y Minnesota.
As of August 2025, China has placed zero new crop orders for the 2025/26 marketing year, leading to a 5% drop in November 2025 soybean futures prices from $10.3575 per bushel to $9.845 per bushel between July 18 and August 6. Market skepticism persists regarding China’s willingness to follow through on purchase requests amid directives to reduce imports of certain grains, further dampening export prospects. Farmers face production costs averaging $12.05 per bushel, making current cash prices – widening to negative $1.20 per bushel basis in regions like North Dakota – unsustainable without a trade resolution.
Intensifying competition from Brazil and Argentina is eroding the US share of the global soybean market, particularly in China. Brazil, now the world’s top producer, is projected to harvest 175 million metric tons in 2025, dwarfing the US’s 118 million metric tons. In the 2024/25 marketing year, Brazil produced 42% more soybeans than the US, exporting 112 million metric tons – enough to match China’s entire import demand for that period.
Favorable exchange rates and lower costs have allowed Brazil to dominate seasonal buying windows, with its harvest starting in February narrowing the US selling period. Argentina, recovering from previous droughts, is expected to see rising whole bean exports in 2025/26, further pressuring US market access.
Chinese buyers have shifted dramatically: In 2025, all 8 million metric tons booked for September and 4 million for October originated from South America, bypassing US supplies despite their superior amino acid profiles and quality. Even with a 90-day pause on higher US tariffs extended in 2025, farmers report that Brazil retains a competitive edge, with US exports hitting 20-year lows due to trade tensions redirecting demand southward.
This shift has long-term implications, as South American infrastructure improvements and production growth – Brazil’s output up 45% since the first trade war – solidify their dominance.
Rising domestic consumption, particularly for biofuel production, is limiting exportable surpluses. The US Department of Agriculture (USDA) forecasts 2025/26 soybean production at 4.3 billion bushels, down 43 million from prior estimates due to a 3% decline in planted and harvested acres, though yields are projected at 53.6 bushels per acre.
Exports are expected to fall to 1.7 billion bushels, reflecting tighter supplies and increased crushing for soybean oil used in biodiesel. In 2024, half of the US’s 13 million metric tons of soybean oil went to biodiesel, prompting crushers to seek more beans domestically and reducing exports by one billion pounds in 2025/26.
Global oilseed stocks are also tightening, with ending stocks lowered due to reduced soybean inventories. These dynamics keep season-average prices stable at $10.10 per bushel but cap export growth, with new crop sales down 81% from the five-year average.
Unpredictable trade policies are compounding logistical hurdles, disrupting the flow of soybeans to international markets. With harvest 45-60 days away in August 2025, the absence of Chinese orders creates surplus risks, forcing farmers to incur steep storage expenses amid falling prices.
Supply chains optimized for China – such as barge transport from the Midwest to Gulf ports (two weeks) or rail to the Pacific Northwest (five days plus two weeks by vessel) – are underutilized, leading to inefficiencies.
Tariffs have reshaped global routes, with a 2025 USDA report estimating a 25% drop in US soybean exports to China since 2023, costing $2 billion and idling infrastructure like West Coast ports. Broader tariff threats on Mexico and China could impact over $30 billion in annual agricultural trade flows, further straining last-mile logistics and eroding supply chain reliability.
Climate change is exacerbating production challenges, indirectly affecting export volumes through reduced yields and quality. In 2025, Midwest farmers have faced excess rainfall, fueling diseases like northern corn leaf blight and pest pressures in soybean fields, with Ohio experiencing planting delays and ponding that stunt crop maturity.
Last year’s droughts in the eastern corn belt slashed yields by 25-30%, costing $11 billion nationally. Projections indicate a 3% decrease in US soybean yields by 2036, with central states potentially seeing up to 7.1% declines, leading to a $319 million drop in exports—including $171 million to China.
Broader trends show adverse impacts from warming temperatures, heavy rains, and extreme events like tornadoes and hail storms, with soybean yields projected to fall by up to 24% in coming decades. These weather stresses not only lower output but also increase vulnerability to pests and diseases, compounding export challenges when combined with trade barriers.
The multifaceted problems plaguing US soybean exports in 2025 – trade tariffs, South American competition, domestic shifts, logistical woes, and climate impacts – are interconnected, creating a vicious cycle of reduced demand, surplus stocks, and financial strain for farmers.
Without policy interventions like tariff reductions or diversified markets, the sector risks a widening agricultural trade deficit and economic contraction in soybean-dependent states. Initiatives by groups like the American Soybean Association to reopen Chinese access and promote quality advantages offer hope, but urgent action is needed to secure the future of this vital export.
As global demand for soybeans grows with biofuel expansion and food needs, the US must navigate these hurdles to regain its competitive footing.