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Nuveen Select Tax Free Income Portfolio is a diversified closed-end investment company. It seeks to provide current income and stable dividends, exempt from regular federal and designated state income taxes, consistent with the preservation of capital by investing primarily in a portfolio of municipal obligations.
Great Lakes Dredge & Dock Corp is a provider of dredging services in the United States. The Company is also fully engaged in expanding its core business into the offshore energy industry. Dredging involves the enhancement or preservation of the navigability of waterways or the protection of shorelines through the removal or replenishment of soil, sand, or rock. Company work generally is to performed in coastal waterways and deep water ports. Its project portfolio includes Coastal Restoration, Coastal Protection, Ports and Harbors, International, and Inland Dredging.