Fiscal 2024 Second-Quarter Financial Results

Forward-Looking Statements & Regulation G This presentation contains "forward-looking statements" relating to our business. These forward-looking statements, or other statements made by us, are made based on our expectations and beliefs concerning future events impacting us and are subject to uncertainties and factors (including those specified below), which are difficult to predict and, in many instances, are beyond our control. As a result, our actual results could differ materially from those expressed in or implied by any such forward-looking statements. These uncertainties and factors include (a) global markets and general economic conditions, including uncertainties surrounding the volatility in financial markets, the availability of capital, and the viability of banks and other financial institutions; (b) the prices, supply and availability of raw materials, including assorted pigments, resins, solvents, and other natural gas- and oil-based materials; packaging, including plastic and metal containers; and transportation services, including fuel surcharges; (c) continued growth in demand for our products; (d) legal, environmental and litigation risks inherent in our businesses and risks related to the adequacy of our insurance coverage for such matters; (e) the effect of changes in interest rates; (f) the effect of fluctuations in currency exchange rates upon our foreign operations; (g) the effect of non-currency risks of investing in and conducting operations in foreign countries, including those relating to domestic and international political, social, economic and regulatory factors; (h) risks and uncertainties associated with our ongoing acquisition and divestiture activities; (i) the timing of and the realization of anticipated cost savings from restructuring initiatives and the ability to identify additional cost savings opportunities; (j) risks related to the adequacy of our contingent liability reserves; (k) risks relating to a public health crisis similar to the Covid pandemic; (1) risks related to acts of war similar to the Russian invasion of Ukraine; (m) risks related to the transition or physical impacts of climate change and other natural disasters or meeting sustainability-related voluntary goals or regulatory requirements; (n) risks related to our use of technology, artificial intelligence, data breaches and data privacy violations; and (o) other risks detailed in our filings with the Securities and Exchange Commission, including the risk factors set forth in our Form 10-K for the year ended May 31, 2023, as the same may be updated from time to time. We do not undertake any obligation to publicly update or revise any forward-looking statements to reflect future events, information or circumstances that arise after the filing date of this presentation. This presentation includes certain company data that do not directly conform to generally accepted accounting principles, or GAAP, and certain company data that has been restated for improved clarity, understanding and comparability, or pro forma. All non-GAAP data in this presentation are indicated by footnote. Tables reconciling such data with GAAP measures are available through our website, www.rpminc.com under Investor Information/Presentations. RPM Investor Presentation | Jan. 11, 2024 2

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