---
schema_version: "secwatch.filing_event.v1"
accession: "0001285785-26-000058"
form_type: "8-K"
ticker: "MOS"
cik: "0001285785"
company_name: "MOSAIC CO"
filed_at: "2026-04-08T23:59:59+00:00"
generated_at: "2026-05-15T06:52:36.401062+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.8
calibrated_materiality_score: 0.8
confidence: "high"
source: SEC EDGAR
---

# Mosaic to idle Brazil mines, take $350-400M impairment charge in Q1 2026

## Summary
- Pre-tax impairment of $350-400M in Q1 2026: $275-300M asset write-offs plus severance and contract termination costs.
- Idling Araxá Mining and Chemical Complex and Patrocínio mine reduces annual phosphate production ~1M tonnes.
- Mosaic plans to pursue sale of Araxá assets while continuing Niobium development at Patrocínio.
- Post-transaction annual capex to decline $20-30M, opex $70-80M; limited adjusted EBITDA impact excluding one-time costs.

## SEC filing metadata
- accession: 0001285785-26-000058
- form_type: 8-K
- ticker: MOS
- cik: 0001285785
- company_name: MOSAIC CO
- filed_at: 2026-04-08T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.8
- calibrated_materiality_score: 0.8
- confidence: high
- sec_items: 2.06, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1285785/000128578526000058/0001285785-26-000058-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1285785/000128578526000058/mos-20260408.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001285785-26-000058
- JSON: https://secwatch.observer/filing/0001285785-26-000058.json
- Plain text: https://secwatch.observer/filing/0001285785-26-000058.txt

## Source-grounded claims
- claim_id: 02df61bc32e5eca3ad5e4c966cc970a6a0f9000e
  claim: MOSAIC CO announced a impairment with charges of $350 to $400 million affecting Araxá Mining and Chemical Complex and Patrocínio Complex in Brazil.
  evidence_excerpt: On April 8, 2026, The Mosaic Company (the "Company") announced that it will begin the process of idling and demobilizing its Araxá Mining and Chemical Complex and idling related mining activities at the Patrocínio Complex in Brazil. (the "Araxá Idling"). The Company currently anticipates recording a pre-tax book impact of $350 to $400 million in the first quarter of 2026 with $275 to $300 million for the impairment on assets held for sale and other asset writeoffs and the balance related to severance, contract termination costs, and other idling costs, subject to final accounting determinations.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1285785/000128578526000058/0001285785-26-000058-index.htm

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.