What were the main reasons for Mosaic's first-quarter net loss of $258 million, and how did input costs contribute?

Mosaic's first-quarter net loss of $258 million—reversing a $238 million gain year-ago—was driven primarily by $442 million in charges from idling Brazil phosphate mines (Araxá and Patrocínio), $323 million of pre-tax notable items, and significantly higher costs for phosphate inputs ammonia and sulfur. These cost pressures directly eroded profitability across segments, especially in Phosphate (which swung to a $48 million loss) and Mosaic Fertilizantes (which posted a $422 million operating loss), with the latter citing 'higher sulfur costs' as a key driver of lower production margins.

How is Mosaic adjusting its operations and capital spending in response to current market conditions?

In response to volatile business conditions, Mosaic is curtailing uneconomic production—including partially reducing phosphate output in Florida and Louisiana starting in May and scaling back additional production in Brazil—while carefully managing working capital and leveraging market access to meet demand. It has also lowered its 2026 capital expenditure guidance by $250 million to $1.25 billion to defer spending on less time-sensitive projects, and initiated workforce reductions beginning in April expected to yield $50 million in annualized expense savings ($15 million realized in 2024).

US-based Mosaic swings to a loss on higher ammonia, sulfur costs; cuts 2026 capex

May 12, 2026

Mosaic Co. reported a Q1 net loss due to mine idling and higher ammonia and sulfur costs, cutting 2026 capex and production rates. Potash earnings rose amid balanced fundamentals, though phosphate segments faced volatility.

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