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SAO PAULO, March 31 (Reuters) - The board of Brazilian steelmaker Cia Siderurgica Nacional SA, or CSN, approved the buyback of 32,770 shares, according to a securities filing on Tuesday.
The buyback offer goes from April 1 until June 30, the filing said. The shares to be bought back are equivalent to 5.2 percent of those in the market. (Reporting by Caroline Stauffer; Editing by Lisa Shumaker)