Simpson Manufacturing Co,. Inc., through its subsidiary, Simpson Strong-Tie Company Inc. (SST), designs, engineers and manufactures wood and concrete building construction products. Its wood construction products include connectors, truss plates, fastening systems, fasteners and pre-fabricated lateral resistive systems. Its wood construction products are used in light-frame construction. Its concrete construction products include adhesives, chemicals, mechanical anchors, carbide drill bits, powder actuated tools, fiber reinforced materials and other repair products used for protection and strengthening. Its concrete construction products are used in concrete, masonry and steel construction. The Company markets its products to the residential construction, light industrial and commercial construction, remodeling and do-it-yourself markets. It also provides engineering and design services. The Company's segments are North America, Europe and Asia/Pacific.