Statement of Independent Verification

Statement of Independent Verification GRI 102-56

STATEMENT OF INDEPENDENT VERIFICATION – BUREAU VERITAS

Introduction

Bureau Veritas Certification Brazil (Bureau Veritas) was hired by MRV&CO, to conduct an independent verification of its 2020 Sustainability Report (hereinafter referred to as the Report).

The information published in the report is the sole responsibility of the management of MRV&CO. Our responsibility is defined according to the scope below.

Scope of work

The scope of this verification covered the Global Reporting InitiativeTM Standards and Principles1 for Sustainability Reporting and refers to the reporting period from January 1st to December 31st, 2020.

Responsibilities of MRV&CO, and Bureau Veritas

The preparation, presentation and content of the Report are the sole responsibility of MRV&CO's management. Bureau Veritas is responsible for providing an independent opinion to Stakeholders in accordance with the scope of work defined in this statement.

Methodology

The verification included the following activities:

1. Interviews with those responsible for the material topics and content of the Report, including the GRI indicators associated with the material topics; 2. Analysis of documentary evidence provided by MRV&CO, for the period covered by the Report (2020);

3. Evaluation of systems used for data compilation; 4. Analysis of engagement activities with stakeholders developed by MRV&CO;

5. Evaluation of the system used to determine the material aspects included in the Report, considering the context of sustainability and the scope of the information published.

The verification level adopted was Limited, in accordance with the requirements of the ISAE 30001 standard, incorporated into the internal verification protocols of Bureau Veritas.

Limitations and exclusions

Any evaluation of information related to:

• Activities outside the reporting period; position statements (expressions of opinion, belief, objectives or future intentions) by

MRV&CO; • Accuracy of economic data-financial information contained in this Report, taken from financial statements, verified by independent auditors;

• Inventory of Greenhouse Gas (GHG) emissions, already verified by an independent audit.

The following limitations were applied to this verification: The principles of Accuracy and Reliability of data were verified on a sample basis, exclusively in light of information and data related to the material themes presented in the Report;

The economic information presented in the Report was specifically verified against the GRI Equilibrium principle.

1 ISAE 3000: International Standard on Assurance Engagements

Statement of Independent Verification GRI 102-56

Opinion on the report and verification process

In 2020, MRV&CO carried out a new materiality study which resulted in eight material topics. Consultations have been carried out through various channels with a significant group of stakeholders. In our opinion, the selected topics and subtopics made it possible to prepare a balanced Report in a context of current sustainability;

The Report presents a matrix containing MRV&CO's strategy and a survey of external sources on relevant aspects that are being discussed nationally and internationally in the construction sector: GRI Standard, and Sustainable Development Goals (SDGs); The data presented to meet the GRI indicators 305-1, 305-2 and 305-3 are part of the Inventory of Greenhouse Gases (GHG) emissions, prepared in 2020, whose content has not been verified specific. Prepared based on NBR ISO 14.064-1/07 and the Brazilian GHG Protocol Program, the inventory was certified by a third party through an independent verification process;

The Report appropriately presents the indicators associated with the GRI Essential option, which includes social and environmental indicators;

The various inconsistencies found in the Report, in relation to one or more GRI Principles, have been satisfactorily corrected.

Conclusion

As a result of our verification process, nothing reached our knowledge that could indicate that:

The information provided in the Report is not balanced, consistent and reliable;

MRV&CO has not established appropriate systems for collection, compilation and analysis of quantitative and qualitative data and indicators used in the Report;

The Report does not adhere to the Principles for defining content and quality, the GRI standard for sustainability reports and does not meet the criteria of the Essential option.

Declaration of independence and impartiality

Bureau Veritas Certification is an independent professional services firm specializing in Quality, Health, Safety, Social and Environmental management with over 185 years of experience in independent assessment services.

Bureau Veritas has implemented and enforces a Code of Ethics throughout its business to ensure that its employees maintain the highest standards in their daily activities. We are particularly careful to prevent conflicts of interest. The verification team does not have any other relationship with MRV&CO other than the independent verification of the Sustainability Report. We understand that there is no conflict between other services performed by Bureau Veritas and this verification performed by our team.

The team that conducted this verification for MRV&CO has extensive knowledge in verifying information and systems involving environmental, social, health, safety and ethics issues, which, combined with experience in these areas, allows us a clear understanding of the presentation and verification of good Practices of corporate responsibility.

Contact

www.bureauveritascertification.com.br/ faleconosco.asp | telephone (11) 2655-9000

São Paulo, May 2021 Nelson Luiz Magalhães Bastos Lead Auditor Assurance Sustainability Reports (ASR) Bureau Veritas Certification – Brazil