Mosaic Co Earnings Call Balances Gains And Strain
Mosaic Co ((MOS)) has held its Q4 earnings call. Read on for the main highlights of the call.
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Mosaic Co’s latest earnings call painted a cautiously balanced picture, with clear operational gains offset by intense near-term cost and cash pressures. Management highlighted record and near-record volumes, meaningful cost savings, and growth in higher-margin businesses, but also flagged a heavy 2025 working-capital drag, higher net debt, and a sharp sulfur-driven margin squeeze that will weigh on early 2026 results.
Phosphate Production Recovery and 2026 Output Targets
Mosaic reported Q4 2025 phosphate output of 1.7 million tonnes, a solid result considering an extended turnaround at the Bartow facility. Management now guides to at least 7.0 million tonnes of phosphate production in 2026, framing this as a base case with upside as operating performance normalizes through the year.
Potash Production Strength and Esterhazy Momentum
Potash remained a bright spot, with international sales hitting a record in 2025 as the Esterhazy mine returned to full operating rates and HydroFloat ramped up. For 2026, Mosaic expects to produce roughly 9 million tonnes of potash, similar to 2025, and is targeting record output from Esterhazy while running the potash system at high operating rates.
Material Cost and Efficiency Improvements
The company delivered $150 million of cost savings in 2025 ahead of schedule, underscoring a sharpened focus on efficiency and technology. It aims to capture an additional $100 million of savings in 2026 via technology-enabled initiatives, supply chain optimization, and supplier consolidation across its global footprint.
Phosphate Conversion Costs Moving Lower
Fourth-quarter phosphate cash conversion costs came in at $112 per tonne, improving roughly $20 per tonne from the high watermark reached earlier in 2025. Management believes further structural efficiencies and scale can push conversion costs below $100 per tonne over time, which would materially enhance margins once markets recover.
Potash Cash Cost Competitiveness
Mosaic’s 2025 potash cash cost of production averaged $75 per tonne, putting the business near its long-term cost goals. Executives said they would have fully met Analyst Day targets if not for the higher-cost extension at the Colonsay mine, highlighting underlying competitiveness as a key strategic advantage.
Brazil Rock Cost Progress and Capacity Expansion
In Brazil, rock output reached near-record levels in 2025 while Mosaic Fertilizantes cut its blended rock cost per tonne to $97, the lowest since 2021. The company also completed a 1 million tonne blending facility at Palmeirante, which should expand distribution capacity and support future growth as Brazilian demand normalizes.
Explosive Growth at Mosaic Biosciences
Mosaic Biosciences, the company’s specialty and biologicals platform, doubled net sales to $68 million in 2025 while reaching more than 60 registrations and selling into 16 countries. Management expects another year of doubling net sales in 2026 supported by 8 to 10 new product launches and gross margins in the 40% range.
Portfolio Reallocation and Asset Monetization
Mosaic pushed ahead with portfolio cleanup, divesting several noncore assets including Patos de Minas and Taquari, with a pending sale of Carlsbad still to close. Transactions announced in 2025 are expected to generate around $170 million in proceeds and reduce asset retirement obligations by roughly $60 million, while the firm’s Ma’aden equity stake remains a sizable financial asset.
Working Capital Release Potential in 2026
After a heavy 2025 cash hit from inventory, management now sees a $300 million to $500 million working capital release as highly possible in 2026. The unwind is expected to be driven by inventory drawdown, including about 240,000 tonnes of excess phosphate rock worth roughly $140 million at current values, alongside a gradual demand recovery.
Capital Expenditure Path and Investment Priorities
Mosaic guided to around $1.5 billion in capital expenditures for 2026, above 2025 levels as it funds gyp stack and clay settling projects. Executives characterize this as a near-term peak, with total CapEx expected to drift down toward roughly $1.0 billion by 2030 as major environmental and sustaining projects roll off.
Sharp U.S. Phosphate Demand Weakness
The company faced a pronounced demand shock in U.S. phosphate markets during Q4 2025, tied to farmer affordability challenges and uncertainty around government payments. North American phosphate shipments slid to about 8.5 million tonnes in 2025 from roughly 10 million tonnes previously, representing an estimated 15% year-over-year decline.
Inventory Build and Cash Flow Drag
Inventory builds in both finished goods and key raw materials produced a severe cash flow drag of approximately $960 million in 2025. The working-capital surge helped push net debt higher by about $829 million and drove EBITDA-to-cash conversion down to the mid-30% range, far below Mosaic’s roughly 70% normalized target.
Sulfur Price Spike and Margin Compression
A sharp run-up in sulfur prices since December 2025 is now one of Mosaic’s most immediate headwinds, particularly in Phosphates and Mosaic Fertilizantes. Management estimates an EBITDA headwind of roughly $250 million in the first quarter of 2026 versus the prior year and noted that every $10 per tonne move in sulfur adds around $10 million in quarterly expense.
Idled Low-Margin Brazilian Assets
In response to the sulfur shock and weaker margins, Mosaic idled the Araxa and Fospar operations in Brazil until conditions improve. While the move protects profitability, it also weighs on near-term volumes and contributed to narrower distribution margins in Brazil as the company prioritized margin over share.
Working Capital Concentration and Liquidity Pressure
A significant portion of Mosaic’s elevated working capital stems from excess phosphate inventory and higher-value purchased nutrients, particularly in Brazil and North America. This concentration amplified liquidity pressure in 2025 but also sets up an opportunity for meaningful cash release as those inventories are sold down in 2026.
Balance Sheet Actions and Capital Returns
To manage funding needs, Mosaic issued $900 million of 3- and 5-year notes in late 2025, primarily to retire short-term commercial paper and extend maturities. With net debt higher and cash flow temporarily depressed, management indicated that more aggressive capital returns will likely be deferred until working capital normalizes and sulfur pressure subsides.
Phosphate Recovery Slower Than Planned
Executives acknowledged that phosphate production recovery in 2025 lagged earlier internal targets, with the business failing to reach the 2.0 million tonne per quarter goal late in the year. Guidance is now anchored in demonstrated throughput levels of about 1.7 to 1.8 million tonnes per quarter, with an emphasis on delivering consistent, verifiable improvement.
Brazil Market and Credit Constraints
In Brazil, high interest rates and tighter credit conditions constrained demand and forced Mosaic to adopt more disciplined selling practices. Management plans to remain selective on customer credit, which could limit near-term volume growth even as the company views rising acreage and yield potential as a compelling long-term opportunity.
Forward-Looking Outlook and 2026 Guidance
Looking ahead, Mosaic expects stable potash production of roughly 9 million tonnes and at least 7 million tonnes of phosphate in 2026, supported by improving unit costs in both segments. Management is betting on a $300 million to $500 million working capital release, moderating environmental cash spend, and continued growth in Mosaic Biosciences to offset sulfur headwinds and gradually restore cash generation.
Mosaic’s earnings call showcased a company that has done much of the heavy lifting on operations and costs but is navigating a tough near-term macro and commodity backdrop. Investors will be watching whether sulfur moderates, inventories clear, and Brazilian demand and credit improve, which together would allow Mosaic’s efficiency gains and potash strength to flow more visibly into earnings and free cash flow.
