Acquisition Strengthens RPM's Global Building Envelope Portfolio and Enhances Market Presence in Europe and Beyond

RPM International Inc. (NYSE:RPM) today announced that it has completed the previously announced acquisition of Kalzip GmbH ("Kalzip"), a global leader in the design and production of metal-based roofs and facades for building envelopes, for its Tremco Construction Products Group ("Tremco CPG").

Kalzip is a globally recognized leader in aluminum roofing and façade systems. Headquartered in Koblenz, Germany, the company specializes in customized lightweight, weather-resistant building envelope technologies. Delivering over 1.2 billion square feet of aluminum solutions worldwide, key projects have included Estadio Santiago Bernabéu football stadium in Madrid, Children's Hospital in Dublin, Pickering GO Pedestrian Bridge in Canada, and the LAX Train Station in Los Angeles.

Kalzip generated calendar year 2024 net sales of approximately €75 million; terms of the transaction were not disclosed.

About Tremco Construction Products Group

Tremco Construction Products Group (Tremco CPG), part of the RPM International Inc. portfolio, unites industry-leading building envelope solutions manufacturers and trusted brands—including Tremco, Nudura, Dryvit, Willseal, Flowcrete, Nullifire and Vandex—to deliver comprehensive, integrated construction systems. With operations spanning North America, Europe, Asia-Pacific, India and Latin America, Tremco CPG has a global presence supported by regional businesses and distributors who understand local market needs. Tremco CPG solutions ensure long-lasting performance for commercial, industrial and residential projects worldwide, while international teams collaborate on training, testing and innovation to build high-performing structures in any geography or climate.

About RPM

RPM International Inc. owns subsidiaries that are world leaders in specialty coatings, sealants, building materials and related services. The company operates across three reportable segments: consumer, construction products and performance coatings. RPM has a diverse portfolio of market-leading brands, including Rust-Oleum, DAP, Zinsser, Varathane, The Pink Stuff, Stonhard, Carboline, Tremco, Dryvit and Nudura. From homes and workplaces to infrastructure and precious landmarks, RPM's brands are trusted by consumers and professionals alike to help build a better world. The company employs approximately 17,800 individuals worldwide. Visit www.RPMinc.com to learn more.

For more information, contact Matt Schlarb, Vice President – Investor Relations & Sustainability, at 330-220-6064 or mschlarb@rpminc.com.

Forward-Looking Statements

This press release includes 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 and regional 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) changes in global trade policies, including the adoption or expansion of tariffs and trade barriers; (h) 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; (i) risks and uncertainties associated with our ongoing acquisition and divestiture activities; (j) the timing of and the realization of anticipated cost savings from restructuring initiatives, the ability to identify additional cost savings opportunities, and the risks of failing to meet any other objectives of our improvement plans; (k) risks related to the adequacy of our contingent liability reserves; (l) risks relating to a public health crisis similar to the Covid pandemic; (m) risks related to acts of war similar to the Russian invasion of Ukraine; (n) risks related to the transition or physical impacts of climate change and other natural disasters or meeting sustainability-related voluntary goals or regulatory requirements; (o) risks related to our or our third parties' use of technology including artificial intelligence, data breaches and data privacy violations; (p) the shift to remote work and online purchasing and the impact that has on residential and commercial real estate construction; and (q) 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, 2025, 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 press release.

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Matt Schlarb, Vice President – Investor Relations & Sustainability, at 330-220-6064 or mschlarb@rpminc.com.

RPM Completes Acquisition of Kalzip