Table of Contents Report of Independent Registered Public Accounting Firm Opinion on the Consolidated Financial Statements Basis for Opinion Board of Directors and Shareholders AZZ Inc. Fort Worth, Texas We have audited the accompanying consolidated statements of income, comprehensive income, shareholders’ equity, and cash flows of AZZ Inc. (the “Company”) for the year ended February 28, 2019, and the related notes and financial statement schedule (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects the results of their operations and their cash flows for the year ended February 28, 2019, in conformity with accounting principles generally accepted in the United States of America. These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on the Company’s consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB. We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audit provides a reasonable basis for our opinion. /s/ BDO USA, LLP We have served as the Company’s auditor from 2006 to 2020. Dallas, Texas May 17, 2019 42