The World's Fertilizer Supply Is Under Siege

A war in the Middle East and China’s export lockdown are reshaping global potash and phosphate markets heading into the most critical planting season in years.

A Perfect Storm in Fertilizer Markets

Fertilizer markets do not often make front-page news. But in the first quarter of 2026, two events collided to produce the kind of supply shock that reverberates from commodity trading floors to grocery store shelves. The consequences are still unfolding, and for investors and institutions tracking agricultural inputs, the picture demands attention.

China Goes Dark on Exports

The first blow came from Beijing. China, the world’s largest phosphate exporter, entered the year having already imposed multi-year restrictions on fertilizer exports, a policy designed to protect domestic food security at the expense of global importers. Markets had cautiously hoped that 2026 might bring some easing of those controls. Instead, the Chinese government moved in the opposite direction, announcing a comprehensive ban on all fertilizer exports through at least August. Urea, diammonium phosphate, monoammonium phosphate: none of it is moving. The world’s single largest source of phosphate supply has effectively gone dark for much of the year.

The Strait of Hormuz Closure

The second blow arrived on February 28, when the United States entered armed conflict with Iran. The immediate strategic consequence was Iran’s closure of the Strait of Hormuz, which had obvious implications for oil and gas. Less discussed, but equally consequential for agricultural markets, was its effect on the region’s fertilizer exports. Saudi Arabia, the world’s third-largest exporter of DAP and MAP, found its supply routes severed overnight. Ammonia and sulfur, critical inputs in phosphate production from Saudi Arabia, Qatar, and Iran, were similarly stranded. In a market already depleted by China’s restrictions, the loss of another major exporter in a single week was severe.

The Price Data Tells the Story

The price data tells the story plainly. Diammonium phosphate began the year near US$619 per metric ton. By late March it had reached approximately US$693. Monoammonium phosphate climbed to US$770 per metric ton in the United States and an extraordinary US$990 in Europe. These are not marginal moves. They represent the kind of repricing that directly affects farmer economics and, with a lag, consumer food prices.

Potash markets have been more insulated, but not immune. The major potash exporters, Canada, Russia, and Belarus, have not faced the same acute disruptions, and North American trade flows remain largely protected under the Canada-United States-Mexico Agreement. Potash that entered 2026 around US$358 per metric ton had climbed to approximately US$488 by late March, its highest level since early 2023. That move reflects broad fertilizer market repricing rather than a potash-specific supply crisis. But the structural concentration of potash supply, dominated by three producing geographies, means the sector is never far from a disruption of its own.

Spring Planting Under Pressure

For the northern hemisphere’s spring planting season, the timing could scarcely be worse. Farmers who locked in fertilizer orders before hostilities broke out are insulated. Those who did not face a difficult choice: pay elevated prices for inputs whose costs may not be recoverable in crop revenues, or reduce application rates and accept lower yields. Some analysts believe farmers may shift away from high-input crops like corn entirely. Whether that demand destruction materialises at scale is one of the defining market questions of the next 90 days.

A Structural Vulnerability Exposed

The deeper lesson of Q1 2026 is structural. Global food production has become profoundly dependent on fertilizer supply chains that are geographically concentrated, logistically fragile, and exposed to geopolitical events in regions that few agricultural producers can influence. A war in the Persian Gulf, a policy decision in Beijing: either can move the cost of feeding the world within a matter of weeks. For nations that import the bulk of their agricultural inputs, that vulnerability is not a tail risk. It is the baseline condition.

Brazil Potash Corp.: A Domestic Answer to Import Dependency

As geopolitical disruption exposes the fragility of global fertilizer supply chains, Brazil Potash Corp. (NYSE American: GRO) is advancing a domestic potash project in the Amazon Basin that could reshape the country’s agricultural economics.

Brazil is one of the world’s great agricultural powers. It is among the leading exporters of soybeans, corn, sugar, and beef, a nation whose farmland feeds hundreds of millions of people far beyond its own borders. Yet for all of that productive strength, Brazilian agriculture depends on a supply chain it does not control. More than 95 percent of the potash that fertilises Brazil’s fields is imported, sourced primarily from Canada, Russia, Belarus, Germany, and Israel. In practical terms, the productivity of one of the world’s most important agricultural economies flows, in significant part, through shipping lanes and geopolitical relationships that Brazil can neither manage nor predict.

The Economics of Imported Potash

Understanding why this matters requires understanding what potash actually is in economic terms. Potassium fertilizer, potash, is a mineral abundant in certain geographies and essentially absent from others. Brazil has almost none. The cost of delivered potash in Brazil is therefore not primarily a reflection of the mineral’s intrinsic value. It is a reflection of the logistics required to move bulk minerals up to 20,000 kilometres from mine to field. Every metric ton of potash that a Brazilian farmer applies to a soybean crop has crossed at least one ocean to get there. That freight cost is embedded in input prices, absorbed by farm economics, and ultimately passed along the food supply chain.

The strategic argument for domestic production is, in that context, not complicated. A competitive local source of potash, one with access to Brazil’s internal river and road networks rather than Atlantic shipping lanes, could deliver fertilizer to farmers at a structurally lower cost than any import can achieve. It would also insulate Brazilian agriculture from precisely the kind of disruption that is playing out in global markets right now: a war that closes a shipping strait, a government that suspends exports overnight, a logistics chain that seizes on short notice.

Brazil imports over 95% of its potash. A domestic mine in the Amazon Basin could deliver directly to farmers, eliminating thousands of kilometres of ocean freight from the cost equation.

The Autazes Potash Project

Brazil Potash Corp. is a development-stage company working to address this gap through its Autazes Potash Project, situated in Autazes, Amazonas State, in the Amazon Basin. The project targets sylvinite mineralization suitable for conventional shaft mining and processing into muriate of potash, the standard fertilizer-grade product. The Amazon River system provides a natural logistics corridor that would, upon reaching commercial production, allow the company to move product toward Brazil’s major agricultural regions without the intercontinental freight burden carried by every imported tonne.

The company’s stated long-term objective is to supply approximately 25 percent of Brazil’s annual potash import requirements from domestic production.

A recent and significant milestone is the company’s execution of a Cooperation Agreement with the Mura Indigenous Council in the Autazes region. In Brazil, particularly in the Amazon Basin, engaging meaningfully with affected Indigenous communities is not only a legal requirement but a practical determinant of whether a project can move forward through the country’s regulatory framework. The Mura agreement represents substantive progress on that dimension. It is not the final step. Brazilian resource project approvals involve multiple layers of federal, state, environmental, and social licensing. But it reflects meaningful advancement of a process that has historically been a critical bottleneck for projects in the region.

Timing and Market Context

What Q1 2026 has demonstrated is that the underlying thesis for domestic potash development in Brazil is not a theoretical proposition. It is a live policy and economic question being asked in real time, as Brazilian farmers watch imported fertilizer prices reprice amid conflicts and export bans in geographies they cannot influence. The case for a domestic supply source has rarely been more visible.

ArcStone’s View

The convergence of China’s fertilizer export restrictions and the closure of the Strait of Hormuz has created a supply environment that underscores a long-standing structural vulnerability in global agriculture: the concentration of critical fertilizer production in a small number of geographies, each exposed to its own set of geopolitical risks.

For Brazil, the world’s largest agricultural economy by several measures, this vulnerability is particularly acute. A nation that imports over 95% of its potash has limited ability to manage input costs when supply chains are disrupted by events beyond its borders. Brazil Potash Corp.’s Autazes Project positions the company at the intersection of that structural challenge, offering a potential domestic alternative to intercontinental supply chains that have now been disrupted twice in four years.

The Cooperation Agreement with the Mura Indigenous Council represents a meaningful step in advancing the project through Brazil’s regulatory framework, a process that has historically been the primary gating factor for resource development in the Amazon Basin. The company’s 2025 milestones, including binding offtake contracts covering approximately 91% of planned production, suggest commercial validation of the project’s thesis.

The current market environment does not change the fundamental development timeline of the Autazes Project. But it does sharpen the strategic rationale that underlies it, and it places the question of domestic fertilizer production squarely within Brazil’s national policy conversation.

About Brazil Potash Corp.

Brazil Potash Corp. (NYSE American: GRO) is a development-stage fertilizer company advancing the Autazes Potash Project in Amazonas State, Brazil. The project targets sylvinite mineralization for conventional shaft mining and processing into muriate of potash. With initial planned production of up to 2.4 million tons per year and binding offtake agreements covering approximately 91% of that capacity, the company aims to establish a domestic potash supply for Brazil’s agricultural sector. The Amazon River system provides a natural logistics corridor connecting the mine site to Brazil’s major farming regions.

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