Experienced Packaging Industry Leader with a Track Record of Enhancing Shareholder Value

TriMas (NASDAQ:TRS) today announced that Thomas J. Snyder has been appointed President and Chief Executive Officer, and to the TriMas Board of Directors, effective June 23, 2025. Mr. Snyder is succeeding Thomas Amato, the current President and Chief Executive Officer of the Company.

Mr. Snyder brings nearly 35 years of experience in the packaging industry, having served in several leadership positions at Silgan Holdings Inc., a global manufacturer of packaging solutions for consumer goods products. Most recently, he served as President of Silgan Containers LLC, from October 2007, managing close to $3 billion in sales, while driving significant sales, earnings and cash flow growth during his tenure. Prior to that, Mr. Snyder was Executive Vice President of Silgan Containers from July 2006 to October 2007 and Vice President - Sales and Marketing of Silgan Containers from July 2002 to July 2006. Earlier in his career, Mr. Snyder served in the roles of Director of Sales, National Account Manager, Materials Application Engineer and various operations management positions for Silgan Containers. Mr. Snyder obtained an M.B.A. from Pepperdine University and a B.S. in Packaging from Michigan State University.

"After a comprehensive search process, we are pleased to recruit someone of Thomas' stature and experience to lead TriMas' Packaging, Aerospace and Specialty Products groups," commented Herbert K. Parker, TriMas Chairman of the Board. "Thomas is an engaging and highly accomplished packaging executive with a strong track record of driving performance. We believe TriMas will benefit from Thomas' effective leadership style, operational management expertise and customer-centric approach. We are confident that under his leadership, TriMas will be well-positioned to enhance shareholder value and further elevate the quality of solutions and service we provide to our customers."

"TriMas has a portfolio of market-leading products, great manufacturing capabilities and solid customer relationships to build upon for the future," said Mr. Snyder. "I am excited to join the team. Based on my initial evaluation, I am confident we can identify and pursue significant opportunities to enhance future performance of the company, and I look forward to working together with our talented global team to achieve TriMas' untapped potential."

"The TriMas Board of Directors would like to thank Thomas Amato for his extended service while we conducted a comprehensive search to find a best-in-class CEO that was the right fit for TriMas," concluded Mr. Parker.

About TriMas

TriMas manufactures a diverse set of products primarily for the consumer products, aerospace and industrial markets through its TriMas Packaging, TriMas Aerospace and Specialty Products groups. Our approximately 3,900 dedicated employees in 13 countries provide customers with a wide range of innovative and quality product solutions through our market-leading businesses. Our TriMas family of businesses has strong brand names in the markets served, and operates under a common set of values and strategic priorities under the TriMas Business Model. TriMas is publicly traded on the NASDAQ under the ticker symbol "TRS," and is headquartered in Bloomfield Hills, Michigan. For more information, please visit www.trimas.com.

Notice Regarding Forward-Looking Statements

Any "forward-looking" statements, within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934, contained herein, including those relating to TriMas' business, financial condition or future results, involve risks and uncertainties with respect to, including, but not limited to: general economic and currency conditions; competitive factors; market demand; our ability to realize our business strategies; our ability to identify attractive acquisition candidates, successfully integrate acquired operations or realize the intended benefits of such acquisitions; pressures on our supply chain, including availability of raw materials and inflationary pressures on raw material and energy costs, and customers; the performance of our subcontractors and suppliers; risks and uncertainties associated with intangible assets, including goodwill or other intangible asset impairment charges; risks associated with a concentrated customer base; information technology and other cyber-related risks; risks related to our international operations, including, but not limited to, risks relating to tensions between the United States and China; government and regulatory actions, including, without limitation, climate change legislation and other environmental regulations, as well as the impact of tariffs, quotas and surcharges; changes to fiscal and tax policies; intellectual property factors; uncertainties associated with our ability to meet customers' and suppliers' sustainability goals and achieve our sustainability goals in alignment with our own announced targets; litigation; contingent liabilities relating to acquisition activities; interest rate volatility; our leverage; liabilities imposed by our debt instruments; labor disputes and shortages; the disruption of operations from catastrophic or extraordinary events, including, but not limited to, natural disasters, geopolitical conflicts and public health crises, the amount and timing of future dividends and/or share repurchases, which remain subject to Board approval and depend on market and other conditions; our future prospects; and other risks that are detailed in the Company's Annual Report on Form 10-K for the fiscal year ended December 31, 2024. The risks described are not the only risks facing our Company. Additional risks and uncertainties not currently known to us or that we currently deemed to be immaterial also may materially adversely affect our business, financial position and results of operations or cash flows. These risks and uncertainties may cause actual results to differ materially from those indicated by the forward-looking statements. All forward-looking statements made herein are based on information currently available, and the Company assumes no obligation to update any forward-looking statements, except as required by law.

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Sherry Lauderback

VP, Investor Relations, Communications & Sustainability

(248) 631-5506

sherry.lauderback@trimas.com

TriMas Appoints Thomas Snyder President and Chief Executive Officer