Sulfur, a critical ingredient in fertilizer production, has experienced unprecedented price volatility that threatens to reshape food costs globally. The commodity traded at $46 per ton in 2024, jumped to $180 per ton in 2025, and reached spot prices exceeding $1,000 per metric ton in July. This dramatic escalation has prompted major fertilizer producers to reconsider operations, with the Mosaic Company already idling two production facilities in Louisiana that employ approximately 300 workers.
The price surge stems from significant disruptions in global supply chains. Major sulfur-producing regions, particularly in the Middle East including Iran, have faced export restrictions or logistical challenges related to the Strait of Hormuz. Russia, another substantial sulfur producer, has encountered export bans affecting many markets. Despite the United States producing its own sulfur domestically, global supply pressures have driven international demand toward American markets, pushing domestic prices upward as well.
The consequences extend beyond fertilizer production economics. Phosphate fertilizer usage is anticipated to decline substantially due to the elevated costs, which could constrain agricultural productivity and output. According to Oxford Economics analysis, accounting for both elevated diesel and fertilizer expenses, global food prices are projected to increase by 4.8% in 2027. While the direct correlation between sulfur prices and food inflation lacks a single quantifiable metric, agricultural experts recognize the connection through the supply chain mechanism.
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