Sika AG’s U.S. subsidiary, Sika Corporation, has acquired the Green­streak Group, Inc. Head­quartered in St. Louis, Missouri, annual revenues for Greenstreak are approximately $30 million. Sika expects this acquisition will further strengthen its leadership position in the North American construction industry. The acquired company has been manufacturing products for the construction industry, including a wide range of forming accessories, engineered waterstops and joint seals, doweling systems, architectural form liners, and pipeline protections.