2. Acquisitions In December 2011, the Company purchased the assets, net of certain liabilities, of Fox Industries, Inc., a Maryland corporation ( Fox Industries ), a manufacturer of construction products and systems for restoring, protecting and strengthening concrete. The acquisition broadened the Company s concrete construction product line, while also extending the overall product line into more commercial, industrial and infrastructure markets. The purchase price was $8.7 million. The Company recorded goodwill of $3.9 million and intangible assets subject to amortization of $2.9 million in the North America segment, the amortization of which is deductible for income tax purposes. The weighted-average amortization period for the intangible assets is 9.7 years. Net tangible assets, including accounts receivable, inventory, certain prepaid expenses, machinery and equipment and certain liabilities, accounted for the balance of the purchase price. In December 2011, the Company purchased the assets of Automatic Stamping, LLC and Automatic Stamping Auxiliary Services, LLC, both North Carolina limited liability companies, and certain real property and improvements owned by TIMMCO, Inc., a North Carolina corporation (collectively  Automatic Stamping ). Automatic Stamping was a manufacturer of truss plates. Combined with the Company s truss design software, its operating expertise and means of distribution, the Company plans to offer truss plates and software products to its North America customer base. The purchase price was $43.5 million. As a result of the acquisition, the Company has recorded goodwill of $29.5 million and intangible assets subject to amortization of $4.6 million in the North America segment, the amortization of which is deductible for income tax purposes. The weighted-average amortization period for the intangible assets is 4.8 years. Net tangible assets, including accounts receivable, inventory, land, building and machinery and equipment, accounted for the balance of the purchase price. In January