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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.
Orion SA is a manufacturer of carbon black products. Carbon black is a powdered form of carbon used to create the desired physical, electrical and optical qualities of various materials. The company's operating segments are Specialty Carbon Black and Rubber Carbon Black. It generates maximum revenue from the Rubber Carbon Black segment. Rubber Carbon Black segment is used in the reinforcement of rubber in tires and mechanical rubber goods. The Specialty Carbon Black segment is used as pigments and performance additives in coatings, polymers, printing and special applications. Geographically, it derives a majority of its revenue from Germany.