Simpson Manufacturing Co., Inc.

Our headquarters and principal executive offices in Pleasanton, California and Plano, Texas are located in owned and leased premises, respectively. Our principal U.S. manufacturing facilities in Stockton and Riverside, California; McKinney, Texas; Columbus, Ohio; West Chicago, Illinois; and Gallatin, Tennessee are located in owned premises. The principal manufacturing facilities located outside the U.S., the majority of which we own, are in France, Italy, Denmark, Germany, Poland, Switzerland, Sweden, Portugal and China. We also own and lease smaller manufacturing facilities, warehouses, research and development facilities and sales offices in the U.S., Canada, the United Kingdom, Europe, Asia, Australia, New Zealand, and Chile. As of February 27, 2026, the Company’s owned and leased facilities were as follows:

We believe that our properties are maintained in good operating condition. Our manufacturing facilities are equipped with specialized equipment and use extensive automation. Our leased facilities typically have renewal options and have expiration dates through 2039. We believe we will be able to extend leases on our various facilities as necessary, or as they expire. Currently, our manufacturing facilities are being operated with at least one full-time shift. Based on current information and subject to future events and circumstances, we anticipate that we may require additional facilities to accommodate possible future growth.