Brazil is set to overtake the U.S. this year as the world’s top corn exporter, reflecting both a bumper harvest and logistical breakthroughs such as the consolidation of northern export routes, which are boosting the competitiveness of the South American grains powerhouse.

Corn exports through Brazil’s northern ports, which use the waterways of the Amazon River basin to ship grains globally, are on track to beat volumes via the most traditional port of Santos for a third consecutive year, according to a Reuters analysis of grain shipping data.

The shift underscores how Brazil, which churns out three corn crops per year and still has huge expanses of under-used farm land, is finally overcoming some of the infrastructure bottlenecks that have long made it hard to get its bountiful harvests to global markets.

That and a new supply deal with China announced last year suggest Brazil may be opening a longer era of supremacy over U.S. corn exports, unlike the last time the Brazilians briefly grabbed the global corn crown during North America’s drought-hit 2012/13 season.