Mosaic : 2023 Assurance Report

MOS

Independent Limited Assurance Report to The Mosaic Company

ERM Certification & Verification Services Incorporated ("ERM CVS") was engaged by The Mosaic Company ("Mosaic") to provide limited assurance in relation to the selected information set out below and presented in Mosaic's 2023 Sustainability Disclosure and in sections 302-1,303-3,305-1,305-2 and 305-3 of the GRI Index (the "Report").

Engagement summary

Whether the 2023 data and related explanatory notes for the following selected indicators are fairly presented in the Report, in all material respects, in accordance with the reporting criteria.

• Scope 2 GHG emissions CH4 [MT CO2e]*

Scope of our

• Total water withdrawal and water withdrawal per source: (groundwater,

assurance

municipal water, surface water (seawater and other surface water), reclaimed

engagement

wastewater) [cubic meters]

• Total Scope 3 emissions from the following categories [MT CO2e]:

• Category 1: Purchased goods and services - ammonia purchases only;

• Category 3: Fuel-andenergy-related activities;

• Category 4: Upstream transportation and distribution from global trucking

(Florida, Louisiana, Brazil, Canada) and rail (US, Brazil, Canada) only;

• Category 11: Use of sold products; and

• Category 15: Investments -Ma'aden Wa'ad Al Shamal Phosphate Company

(MWSPC) only.

*Though part of the assurance scope, the disaggregated gases are only reported

internally and are not included in the Report.

Our assurance engagement does not extend to information in respect of earlier periods

or to any other information included in the Report.

Reporting period

1 January 2023 - 31 December 2023

The Mosaic Company's internal reporting criteria and definitions.

Reporting

WBCSD/WRI GHG Protocol (2004, as updated January 2015) for the Scope 1 and 2

criteria

GHG emissions.

We performed a limited assurance engagement, in accordance with the International

Standard on Assurance Engagements ISAE 3000 (Revised) 'Assurance Engagements

Assurance

other than Audits or Reviews of Historical Financial Information' issued by the

International Auditing and Assurance Standards Board.

standard and

The procedures performed in a limited assurance engagement vary in nature and timing

level of

assurance

from and are less in extent than for a reasonable assurance engagement and

consequently, the level of assurance obtained in a limited assurance engagement is

substantially lower than the assurance that would have been obtained had a reasonable

assurance engagement been performed.

Mosaic is responsible for preparing the Report and for the collection and presentation of

the information within it, and for the designing, implementing, and maintaining of internal

Respective

controls relevant to the preparation and presentation of the selected information.

responsibilities

ERM CVS' responsibility is to provide a conclusion to Mosaic on the agreed scope based

on our engagement terms with Mosaic, the assurance activities performed and

exercising our professional judgement.

Our qualified conclusion

In our opinion, except for the matter described in the "Basis for qualified conclusion" paragraph below, nothing has come to our attention to indicate that the 2023 data and related explanatory notes for the environmental indicators and data under "Scope of our assurance engagement" above are not fairly presented in the Report, in all material respects, with the reporting criteria.

Basis for qualified conclusion

We have not been able to obtain sufficient appropriate evidence to form a conclusion on Scope 3 Category 15: Investments due to lack of available source data. Accordingly, we do not express a conclusion on that data.

Our assurance activities

Considering the level of assurance and our assessment of the risk of material misstatement of the selected indicators, a multi-disciplinary team of sustainability and assurance specialists performed a range of procedures that included, but was not restricted to, the following:

The limitations of our engagement

The reliability of the assured information is subject to inherent uncertainties, given the available methods for determining, calculating or estimating the underlying information. It is important to understand our assurance conclusions in this context.

Our independence, integrity and quality control

ERM CVS is an independent certification and verification body accredited by UKAS to ISO 17021:2015. Accordingly, we maintain a comprehensive system of quality control, including documented policies and procedures regarding compliance with ethical requirements, professional standards, and applicable legal and regulatory requirements. Our quality management system is at least as demanding as the relevant sections of ISQM-1 and ISQM-2 (2022).

ERM CVS applies a Code of Conduct and related policies to ensure that its employees maintain integrity, objectivity, professional competence and high ethical standards in their work. Our processes are designed and implemented to ensure that the work we undertake is objective, impartial and free from bias and conflict of interest. Our certified management system covers independence and ethical requirements that are at least as demanding as the relevant sections of the IESBA Code relating to assurance engagements.

ERM CVS has extensive experience in conducting assurance on environmental, social, ethical and health and safety information, systems and processes, and provides no consultancy related services to Mosaic in any respect.

Heather I. Moore

Partner, Corporate Assurance

Malvern, PA

June 4, 2024

On behalf of:

ERM Certification & Verification Services Incorporated

www.ermcvs.com|[email protected]

Disclaimer

The Mosaic Company published this content on 25 June 2024 and is solely responsible for the information contained therein. Distributed by Public, unedited and unaltered, on 25 June 2024 20:51:50 UTC.