Corn Market Caught Between Record Argentina Harvest and Tight EU Supply

International corn markets are caught in a fragile balance, with a projected record Argentine harvest pointing toward medium-term price pressure while logistical disruptions along Black Sea supply corridors continue to support European feed grain premiums in the near term, according to a CMB News market analysis published on 23 September 2026.

Record Argentine Crop Reinforces Bearish Medium-Term Supply Outlook

The Buenos Aires grain exchange has raised its projection for Argentina's 2026/27 maize harvest to 66 million tonnes, exceeding last season's record of 64 million tonnes. The exchange's managing director described the expected output as "the largest harvest in our history." Corn planting for 2026/27 is ramping up from late September onward, and CMB News reported that current meteorological outlooks point to broadly favourable sowing conditions, reinforcing confidence in the high-yield projections. No immediate weather threat was identified that would justify pricing in a strong weather premium at this stage.

EU Faces Near-Term Tightness as Ukrainian Flows Remain Disrupted

Despite the comfortable global supply picture, the European Union is contending with constrained near-term corn availability. EU maize imports since the start of the current marketing year reached 4.47 million tonnes by 20 September, 27% above the same point last year. Spain led member-state intake at 2.54 million tonnes, while Germany had received only 66,000 tonnes. The United States was the leading external supplier at 1.86 million tonnes, followed by Ukraine at 1.40 million tonnes and Brazil at 0.976 million tonnes.

Ukrainian corn flows into the EU remain heavily disrupted. CMB News reported that rail wagons face two-to-three-week waits at border crossings into Poland and Romania, while queues at the port of Constanța have lengthened further. These bottlenecks are effectively rationing Black Sea supply in the short run and supporting EU premiums.

Wide Origin Spread Reflected in Physical Prices

The logistical friction is visible in physical market quotations. Ukrainian feed corn (moisture 14% max) was offered at EUR 0.157/kg on a CPT Odesa basis, and FCA Odesa feed corn (14.5% max moisture) at EUR 0.18/kg, while German feed corn EXW Drentwede was indicated at EUR 0.295/kg — a spread of nearly EUR 0.14/kg between Black Sea and inland European origins.

CBOT Softens on Profit-Taking; Euronext Holds Firm

On the Chicago Board of Trade, the active December 2026 corn contract retreated on 22 September following a sharp rally on the previous session, as traders booked profits and reduced risk ahead of a summit between Presidents Trump and Xi in Washington. Market participants are watching for potential Chinese commitments to increased U.S. agricultural imports, which could re-ignite export-led support for U.S. corn if substantial volumes are signalled.

Euronext corn futures, by contrast, rallied on Tuesday, underpinned by tight EU spot availability and ongoing difficulties moving Ukrainian corn into the bloc. CMB News assessed the near-term bias on Euronext as mildly firm, with CBOT characterised as slightly bearish to sideways pending news from the U.S.–China summit and export sales data.