08:11 AM EDT, 10/10/2025 (MT Newswires) -- Mosaic (MOS) said Friday that its preliminary Q3 phosphate production fell short of expectations due to "unexpected mechanical issues" at its Riverview sulfuric acid plant and utility interruptions at Bartow in September.

The company said these caused "a meaningful decline" in overall production, with phosphate production volumes reaching approximately 1.7 million tons during the quarter.

Sales volumes for the quarter were about 1.6 million tons, mostly due to the "lag of shipments already confirmed and priced," the company said.

Mosaic said the issues have since been addressed, and expects a "sustainable improvement" in production rates going forward.

Shares of Mosaic were down more than 8% in recent premarket activity Friday.