The Mosaic Company recently reported a significant near-term cost shock, including a US$250 million Q1 2026 EBITDA headwind from elevated sulfur costs and operational disruptions, leading to idled Brazilian operations and halted sulfur purchases. This response shows how input cost volatility and geopolitical supply constraints can quickly become operationally binding for a fertilizer producer that relies heavily on sulfur. Next, we'll examine how this sulfur-driven cost shock and operational...