Trump Wants a Lower Price for the Canadian Potash He Keeps Buying

U.S. President Donald Trump said at the United Nations General Assembly that the United States will keep buying Canadian potash but wants to pay a cheaper price for it.

President Donald Trump told an audience at the United Nations General Assembly that the United States will continue to buy Canadian potash, while adding that he wants to pay less for it. The remark, brief as it was, lands on one of the few cross-border trade flows where the asymmetry runs firmly in Canada's favor — and where Washington has repeatedly signaled it knows that.

The comments were reported by BNN Bloomberg. Two things were said: purchases continue, and the price should come down. Both matter, and they pull in different directions for the Canadian producers who mine the material and for the American farmers who spread it.

Why Potash Sits in a Category of Its Own

Potash is potassium chloride, the third of the three primary crop nutrients alongside nitrogen and phosphate. It is not a manufactured commodity in the way ammonia is; it is mined from ancient evaporite beds, and those beds are where geology left them. Saskatchewan holds one of the largest and lowest-cost concentrations on the planet, which is why Canada is the world's dominant exporter and why the United States — a very large consumer with comparatively modest domestic reserves — buys most of what it uses from abroad.

That distinction is what separates potash from steel, aluminum, softwood lumber or autos in any trade argument. With most goods, the threat behind a tariff is substitution: buy it somewhere else, or make it at home. With potash, substitution is slow and expensive. New mine capacity is measured in years and billions of dollars, and the alternative export sources are concentrated in jurisdictions that American buyers have their own reasons to avoid. A president saying the U.S. "will continue buying" Canadian potash is not a concession so much as a statement of physical reality.

The second half of the sentence is the negotiating position. Wanting a cheaper price, said publicly by the head of the largest customer economy, is a form of pressure that does not require a tariff schedule to be effective. It tells buyers in the U.S. Midwest that Washington regards current pricing as too high, and it tells Canadian sellers that the political temperature around the trade is not falling.

What the Pressure Actually Runs Through

There is no single lever a U.S. administration can pull to make potash cheaper. Fertilizer prices are set in a global market shaped by crop economics, energy costs, freight, and the output decisions of a small number of large producers. Washington can influence the landed cost at the U.S. border through tariff treatment — a duty raises it, an exemption lowers it — but it cannot directly set the mine-gate price in Saskatchewan.

That is why the practical read of the remark is about tariff exposure rather than price negotiation in any literal sense. Potash has been an awkward item throughout recent rounds of U.S.–Canada trade friction precisely because any levy on it is paid, in the end, by American growers at planting time. Farm-state politics and trade leverage collide on this particular molecule, and the collision tends to resolve in favor of the farmers.

Three channels are worth watching from here:

• Tariff classification. Whether potash continues to be treated as a carve-out or gets swept into a broader duty framework is the single biggest determinant of what U.S. buyers pay.
• Contract season timing. Fertilizer buying is seasonal and forward-contracted. Public commentary from a head of state during a contracting window affects how aggressively distributors commit.
• Producer discipline. Potash supply has historically been managed rather than maximized. If producers slow output to defend price, the political complaint about cost gets louder.

The Canadian Read

For Ottawa and for Regina, the statement is double-edged. Confirmation that purchases continue removes a tail risk that has hung over the sector during every escalation — the possibility that the United States tries, however impractically, to engineer its way out of Canadian supply. Saskatchewan's royalty base and employment in the potash corridor depend on that flow continuing.

But an explicit demand for a lower price is a demand for thinner margins on the country's most strategically valuable export after energy. Canadian officials have consistently framed critical inputs as leverage in the broader relationship rather than as items to be discounted on request. A public request for a discount, made from a UN podium, is unlikely to be met with a public answer.

The wider pattern here is familiar. Commodities that the United States cannot readily replace — potash, uranium, certain refined metals, heavy crude for Gulf Coast refineries — keep getting pulled into a trade conversation designed for manufactured goods, and keep resisting it. Each time, the resolution has tended toward exemption plus rhetoric rather than duty plus disruption.

How the Tape Looked Around the Remark

Equity markets gave no obvious verdict. At the most recent close on Tuesday, Sept. 22, 2026, the S&P 500 tracking fund (NYSEARCA: SPY) finished at $773.38, down 0.02% from a prior close of $773.50, inside a session range of $772.57 to $775.14. The Dow 30 fund (NYSEARCA: DIA) closed at $518.00, off 0.34% from $519.78. The Nasdaq 100 fund (NYSEARCA: QQQ) was the outlier, closing at $747.46 for a 0.81% gain against a prior close of $741.47.

In other words, a flat broad market, a softer industrial-weighted Dow, and a technology bid doing the lifting. Nothing in that configuration suggests traders repriced the fertilizer complex on the comment, which is consistent with how these statements have tended to land: the market waits for the tariff document, not the podium.

What Would Make This Real

The test is whether any formal action follows. A written exemption, a rate change, or a procurement measure would convert the remark into something buyers and producers can model. Absent that, it functions as pressure — useful to an administration, irritating to a supplier, and largely invisible in share prices.

For U.S. growers, the relevant question is what a ton costs delivered when spring buying starts, not what was said in New York. For Canadian producers, the relevant question is whether "cheaper" is an aspiration or a policy. Until one of those is answered, the trade continues on the terms geology already set.

Key facts

• Statement: Trump said the U.S. will continue buying Canadian potash
• Condition attached: He said he wants a cheaper price
• Venue: United Nations General Assembly
• Market backdrop (close, Sept. 22, 2026, 20:00 GMT): SPY $773.38 (-0.02%); DIA $518.00 (-0.34%); QQQ $747.46 (+0.81%)

Frequently asked questions

What exactly did Trump say about Canadian potash?

Speaking at the United Nations General Assembly, President Donald Trump said the United States will continue buying Canadian potash, while adding that he wants a cheaper price for it. Those were the two elements of the remark: a commitment that purchases continue, and a stated desire to pay less than current prices for the imported fertilizer.

Why does the U.S. depend on Canada for potash?

Potash is mined from ancient underground salt deposits, and Canada — principally Saskatchewan — holds one of the world's largest and lowest-cost concentrations. The United States consumes a great deal of potash for agriculture but has comparatively limited domestic reserves, so it imports most of its supply. Building alternative capacity takes years and substantial capital.

What is potash used for?

Potash is potassium chloride, one of the three primary crop nutrients alongside nitrogen and phosphate. Farmers apply it to improve yield, root development and drought and disease resistance in crops including corn, soybeans and wheat. Because it is a bulk agricultural input, its landed cost feeds fairly directly into planting-season expenses for growers.

Can a U.S. president lower the price of potash?

Not directly. Potash prices are set in a global market shaped by crop economics, energy and freight costs and producer output decisions. Washington can influence what American buyers pay at the border through tariff treatment — imposing a duty raises the landed cost, exempting it lowers it — but it cannot set the mine-gate price charged by Canadian producers.

Did markets react to the comment?

There was no visible repricing in the broad indexes. At the most recent close on Sept. 22, 2026, SPY finished at $773.38, down 0.02%; DIA closed at $518.00, down 0.34%; and QQQ closed at $747.46, up 0.81%. That mix reflects a technology-led session rather than any fertilizer-driven move.

What should investors and farmers watch next?

The decisive item is whether formal action follows the rhetoric: a tariff classification decision, a rate change, or an exemption covering potash. That is what buyers and producers can actually model. Contract timing during the fertilizer buying season and producer output discipline are the other two variables that determine delivered cost.

Sources

• Trump says U.S. to continue buying Canadian potash but wants cheaper price — BNN Bloomberg