Mosaic's 2026: Navigating the Phosphate Affordability Cycle and Potash's Supply Cushion

Mosaic's 2025 results tell a clear story of two distinct cycles. The company's operational execution was robust, but the macro backdrop for its core nutrients created a stark divergence in performance. This split is key to understanding the setup for 2026.

The most direct pressure came from the North American phosphate market, where demand weakened sharply in the fourth quarter. This was not a failure of product or marketing, but a classic affordability shock. High real interest rates and elevated input costs have squeezed farmer balance sheets, directly translating into a 14-15% drop in U.S. phosphate shipments. The macro forces here are clear: a strong U.S. dollar, supported by those high rates, makes both imported inputs and exported crops more expensive, compressing margins and delaying spending. This is the cycle in action.

Yet, even as demand faltered, Mosaic strengthened its operational foundation. Management successfully restored the company's production base, achieving record mining production at Miski Mayo and the highest Florida rock production in three years. This focus on P2O5 output and grade flexibility allowed the company to maintain a strong position despite the market downturn. The result was a $20 per tonne structural improvement in phosphate cash conversion costs and the achievement of a $150 million cost savings target ahead of schedule. In other words, Mosaic turned a macro headwind into an opportunity to build a more efficient, resilient operation for the next cycle.

The potash story, by contrast, is one of relative strength within a well-supplied market. While global potash supplies are expected to remain high, the outlook for affordability is more optimistic than for other nutrients. This is supported by a more favorable macro backdrop for global growth and lower real interest rates, which tend to support commodity demand and reduce the cost of financing inventory. As one analyst noted, the potash outlook is much more positive compared to the nitrogen and phosphorus outlooks for 2026, with affordability seen as a key differentiator. This creates a more stable, if less explosive, environment for Mosaic's potash business.

The bottom line is that 2025 was a year of strategic positioning. Mosaic weathered a sharp phosphate affordability shock by doubling down on operational efficiency, while its potash segment benefited from a more supportive macro climate. The record production and cost savings achieved provide a solid base. The challenge now is to see if the macro cycle can shift enough to unlock the value in that improved operational foundation.

The 2026 Macro and Operational Catalysts

The path for Mosaic in 2026 hinges on two contrasting market cycles and the company's ability to execute within them. The macro backdrop sets up a clear divergence: a well-supplied potash market with optimistic affordability, versus a phosphate market where supply constraints could emerge from unexpected sources.

For potash, the fundamental outlook is one of ample supply. Global production hit a record high last year, and Canada remains the top exporter, ensuring a steady flow of product. Yet, the market's trajectory is supported by a more favorable affordability climate compared to nitrogen and phosphate. This is a critical differentiator, as it suggests demand may hold up better even if prices don't rally sharply. The company's own guidance reflects this stability, with management targeting roughly 9 million tonnes of potash production for 2026, matching 2025 levels. The focus here is on operational execution, with the Esterhazy site returning to full rates and record production expected.

Phosphate faces a more complex and potentially constructive supply picture. While North American demand remains pressured by affordability, the global supply chain is tightening from a different angle. China's export restrictions on phosphoric acid, a key raw material, are a known constraint. More importantly, the explosive growth in lithium iron phosphate (LFP) battery demand is diverting a significant portion of the world's phosphoric acid supply away from fertilizer. This creates a structural supply squeeze that could support prices and margins if demand recovers. Management sees this as a constructive market positioning that could offset some of the weakness in traditional agricultural demand.

On the operational front, Mosaic is setting aggressive targets to capitalize on these cycles. The company's 2026 guidance calls for at least 7 million tonnes of phosphate production and approximately 9 million tonnes of potash production. A key lever for improving profitability is the utilization of its U.S. assets. Management is targeting operating rates at U.S. facilities trending toward 80% as asset reliability initiatives strengthen. This is a meaningful step up from recent periods of curtailment and is essential for fully realizing the $20 per tonne structural improvement in phosphate cash conversion costs achieved in 2025.

The bottom line is a setup defined by execution and timing. Mosaic is positioned to benefit from a supportive potash cycle while navigating a more challenging but potentially supply-constrained phosphate market. The company's ability to hit its production targets and drive U.S. operating rates toward 80% will be the primary operational catalysts for 2026. Success here would translate the improved cost structure and strategic positioning built in 2025 into tangible earnings power, regardless of which nutrient cycle leads the recovery.

Financial Impact and Cash Flow Trajectory

The operational and market outlook for 2026 converges on a clear financial imperative: generating robust cash flow to fund growth and return capital. The path is defined by a temporary capital outlay, a major working capital release, and a strategic shift in asset focus.

The most immediate pressure on cash flow is a planned increase in capital spending. Management has guided for a 2026 CapEx of ~$1.5 billion, up from 2025 levels. This investment is necessary for essential infrastructure projects like gyp stack and tailings dam expansions, but it will temporarily elevate outlays. The good news is that this peak is expected to be followed by a significant decline, with spending projected to trend down toward $1 billion by 2030. This capital program is set to be funded by the company's strong cash generation, with management projecting that free cash flow will exceed required dividends even during this elevated spending phase.

The more transformative cash flow catalyst is the potential release from working capital. A major inventory build in 2025-driven by curtailed production and high input costs-used up $960 million in cash and increased net debt. Now, as operating rates improve and demand recovers, that inventory is a source of liquidity. Management anticipates a $300 million to $500 million working capital release in 2026 as excess phosphate inventory and rock stockpiles are drawn down. This release could improve the company's EBITDA-to-cash conversion rate from the mid-30s% seen in 2025 toward historic ~70% levels, providing a substantial and immediate boost to cash flow.

This working capital turnaround is being paired with a strategic divestiture program to further improve the balance sheet. Mosaic is actively pursuing the sale of non-core assets like Carlsbad and Patos de Minas. These sales are intended to reduce asset retirement obligations and refocus capital on higher-return core operations. The company expects to generate $170 million in proceeds from these divestments, which will directly reduce debt and provide additional capital for strategic priorities.

The bottom line is a financial trajectory that is set to improve materially. The temporary spike in CapEx is a known investment, while the combination of a major working capital release and asset sales creates a powerful cash flow tailwind. This setup provides the financial flexibility to navigate the volatile nutrient cycles, fund the necessary infrastructure, and return capital to shareholders, all while building a leaner, more efficient company.

Catalysts, Risks, and What to Watch

The 2026 outlook for Mosaic hinges on a few key events and metrics that will validate or challenge the company's strategic thesis. For investors, the path forward is defined by monitoring demand signals, geopolitical stability, and the execution of the financial turnaround plan.

The most critical near-term signal will be U.S. farmer spring purchasing patterns. The company's phosphate business is still grappling with a sharp decline in U.S. phosphate demand due to farmer affordability challenges. Any recovery in spring planting will be a direct test of whether the macro affordability cycle is shifting. Timelines for government support programs, which were delayed in late 2025, will also be a key factor in easing that pressure. A sustained pickup in U.S. orders would be the clearest sign that the demand shock is abating.

For the potash segment, the primary risk is geopolitical disruption. While the market is well-supplied, it remains sensitive to tariff threats and trade tensions. The potash story in 2025 was dominated by U.S. tariffs on nearly all of the country's import partners, which contributed to price volatility. Any escalation in these tensions could reintroduce uncertainty and undermine the more stable, affordability-driven demand outlook that management is counting on.

On the financial and operational side, the execution of the cash flow recovery plan is paramount. The company's guidance includes a $300 million to $500 million working capital release as excess inventory is drawn down. This is a major catalyst, but it must be tracked against the specific target. Similarly, the strategic divestiture program is expected to generate $170 million in proceeds from assets like Carlsbad and Patos de Minas. The pace and success of these sales, and how the proceeds are deployed, will directly impact the balance sheet and capital return profile.

The bottom line is that 2026 will be a year of validation. The company has built a stronger operational base and a clearer financial plan. The coming quarters will show whether the macro cycles are aligning to unlock that value, or if headwinds persist. Watching these specific metrics-farmer buying, geopolitical stability, and working capital realization-will provide the forward-looking framework for assessing the thesis.