Item 4. CONTROLS AND PROCEDURES

(a) Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures designed to ensure that information required to be disclosed in our filings under the Securities Exchange Act of 1934 is (i) recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and (ii) accumulated and communicated to management, including our principal executive officer and our principal financial officer, to allow timely decisions regarding required disclosures. Our management, with the participation of our principal executive officer and our principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures as of the end of the period covered by this quarterly report on Form 10-Q. Our principal executive officer and our principal financial officer have concluded, based on such evaluations, that our disclosure controls and procedures were effective for the purpose for which they were designed as of the end of such period.

(b) Changes in Internal Control Over Financial Reporting

Our management, with the participation of our principal executive officer and our principal financial officer, have evaluated any changes in our internal control over financial reporting that occurred during the three months ended September 30, 2025 that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting. Our management, with the participation of our principal executive officer and principal financial officer, did not identify any such change during the quarter ended September 30, 2025.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We have included information about legal and environmental proceedings in Note 17 to our Condensed Consolidated Financial Statements in this report. This information is incorporated herein by reference.

We are also subject to the following legal and environmental proceedings in addition to those described in Note 17 of our Condensed Consolidated Financial Statements in this report:

Countervailing Duty Orders. In April 2021, the U.S. Department of Commerce (“DOC”) issued countervailing duty (“CVD”) orders on imports of phosphate fertilizers from Morocco and Russia, in response to petitions filed by Mosaic. The purpose of the CVD orders is to remedy the injury to the U.S. phosphate fertilizer industry caused by imports that benefit from unfair foreign subsidies, and thereby restore fair competition. CVD orders normally stay in place for at least five years, with possible extensions.

Moroccan and Russian producers have initiated actions at the U.S. Court of International Trade (“CIT”) and the U.S. Court of Appeals for the Federal Circuit (“CAFC”) seeking to overturn the orders. Mosaic has also made claims contesting certain aspects of DOC’s final determinations that, we believe, failed to capture the full extent of Moroccan and Russian subsidies. These litigation challenges remain underway. The CAFC is reviewing a challenge to DOC’s final determination in the CVD investigation for Russia; the CIT is reviewing the DOC’s second remand redetermination for the CVD investigation for Morocco and first remand redetermination for the first administrative review for Morocco; and the ITC recently reaffirmed its original affirmative injury finding in a second remand redetermination, which is also being reviewed by the CIT and briefing is underway.

When a CVD order is in place, DOC normally conducts annual administrative reviews, which establish a final CVD assessment rate for past imports during a defined period, and a CVD cash deposit rate for future imports. In November 2023, DOC announced the final results of the first administrative reviews for the CVD orders on phosphate fertilizers for Russia and Morocco covering the period November 30, 2020 to December 31, 2021. DOC calculated new subsidy rates of 2.12% for Moroccan producer OCP (lowered to 2.11% on remand) and 28.50% for Russian producer PhosAgro. In addition, in November and December 2024 DOC announced the final results of the second administrative reviews for the CVD orders on phosphate fertilizers for Russia and Morocco covering calendar year 2022. DOC calculated subsidy rates of 16.60% for OCP and 18.21% for PhosAgro. Mosaic, as well as parties that oppose the duties, have appealed the final results of DOC’s first and second administrative reviews to the CIT. Currently, DOC is conducting a third administrative review for imports from Russia, covering calendar year 2023. DOC is not conducting an administrative review for Morocco for this period. The applicable final CVD assessment rates and cash deposit rates for imports of phosphate fertilizer from Morocco and Russia could change as a result of these various proceedings and potential associated appeals, whether in federal courts or at the World Trade Organization.

The South Pasture Mine – Hardee County Enforcement Action. On January 8, 2020, Hardee County issued a Notice of Violation (“NOV”) for Mosaic’s delay in meeting the required reclamation schedule for two designated reclamation units within the South Pasture mine. The delay resulted from idling the South Pasture beneficiation plant in 2018; because the plant was idled, no sand was available for reclamation activities.

Acting on Mosaic’s “Application for Waiver and Reclamation Schedule Extension,” in May 2020, the Hardee County Board of County Commissioners approved: (1) a waiver of the applicable reclamation deadlines of the South Pasture Development Order and Land Development Code; (2) an alternative reclamation schedule; and (3) a settlement agreement that resolved the NOV. Mosaic timely paid the civil penalty required by the settlement agreement and continues to implement the approved alternative reclamation schedule, as required. Monitoring programs are in place to ensure continued compliance with the waiver and settlement agreement.

Cruz Litigation. On August 27, 2020, a putative class action complaint was filed in the Circuit Court of the Thirteenth Judicial Circuit in Hillsborough County, Florida against our wholly-owned subsidiary, Mosaic Global Operations Inc., and two unrelated co-defendants. The complaint alleges claims related to elevated levels of radiation at two manufactured housing communities located on reclaimed mining land in Mulberry, Polk County, Florida, allegedly due to phosphate mining and reclamation activities occurring decades ago. Plaintiffs seek monetary damages, including punitive damages, injunctive relief

requiring remediation of their properties, and a medical monitoring program funded by the defendants. On October 14, 2021, the court substantially granted a motion to dismiss that we filed late in 2020, with leave for the plaintiffs to amend their complaint.

On November 3, 2021, plaintiffs filed an amended complaint and, in response, Mosaic filed a motion to dismiss that complaint with prejudice on November 15, 2021. On December 23, 2021, plaintiffs opposed that motion and Mosaic replied to that opposition on January 26, 2022. On April 6, 2022, the court heard argument on the motions to dismiss filed by Mosaic and each other co-defendant. In late March 2023, the court denied defendants’ motions to dismiss.

We continue to vigorously defend this matter.

Faustina Plant Risk Management Plan. On September 14, 2022, EPA Region 6 issued a Notice of Potential Violation and Opportunity to Confer (“NOPVOC”) regarding compliance of our Faustina Plant with Section 112(r) of the Federal Clean Air Act and 40 C.F.R. Part 68, commonly known as the Risk Management Plan Rule (“RMP Rule”). The NOPVOC relates to a compliance evaluation inspection conducted by the EPA at the Faustina Plant from February 22-25, 2022, and alleges violations of the RMP Rule. We conferred with the EPA regarding the allegations in the NOPVOC on November 30, 2022. We negotiated a Consent Agreement and Final Order (“CAFO”) with the agency that was filed on January 30, 2024. As required by the CAFO, we paid a penalty in the amount of $217,085. The CAFO also requires the completion of two supplemental environmental projects: (1) installation of ammonia monitors and monitoring at the plant for a period of two years, and (2) donation of two generators to the St. James Parish Department of Emergency Preparedness. We completed the donation to the St. James Parish Department of Emergency Preparedness on March 14, 2024, and we completed installation and began operation of the ammonia monitors on April 24, 2024.