Company Announcements

PLEASANTON, Calif. , June 16, 2025 /PRNewswire/ -- Simpson Manufacturing Co., Inc. (the "Company") (NYSE: SSD), an industry leader in engineered structural connectors and building solutions, announced today it has published its Fiscal 2024 Corporate Social Responsibility Report. Highlights of the Company's continued commitment to social responsibility and environmentally sustainable business practices to its employees and stakeholders include:

• Becoming a national sponsor of ACE Mentor, a nonprofit that focuses on bringing young people into the construction trades.
• Extending the Company's three-year partnership with Building Talent Foundation through 2025.
• Making donations of more than $125,000 to Habitat for Humanity International.
• Increasing the number of scholarships from 100 to 120 a year, and the scholarship amount from $2,500 to $3,000 per awardee.
• Achieving $202,953 in employee donations. The Company match resulted in $405,906 donated to eligible nonprofit organizations – a 141% increase compared to the prior year.
• Partnering with Gallup to conduct Simpson's 2024 annual Global Employee Engagement Survey.
• Reducing the Company's TRIR to 0.99, exceeding its 2025 goal ahead of schedule.
• Winning several innovation awards in 2024.
• Committing to continuously improve energy, water and waste performance.

The report includes updated ESG-related metrics for the year ended December 31, 2024. Simpson's Fiscal 2024 Corporate Social Responsibility Report can be found on the Company's website at https://simpsonmfg-esg.metrio.net/.

About Simpson Manufacturing Co., Inc.

Simpson Manufacturing Co., Inc., headquartered in Pleasanton, California, through its subsidiaries, including Simpson Strong-Tie Company Inc., designs, engineers and is a leading manufacturer of wood construction products, including connectors, truss plates, fastening systems, fasteners and shear walls, and concrete construction products, including adhesives, specialty chemicals, mechanical anchors, powder actuated tools and reinforcing fiber materials. The Company primarily supplies its building product solutions to both the residential and commercial markets in North America and Europe. The Company's common stock trades on the New York Stock Exchange under the symbol "SSD."

CONTACT:

Addo Investor Relations
investor.relations@strongtie.com
(310) 829-5400

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SOURCE Simpson Manufacturing Co., Inc.