LUXEMBOURG--(Marketwired - May 18, 2015) - Tenaris S.A. Tenaris S.A. (NYSE: TS) (BAE: TS) (BMV: TS) (MILAN: TEN) (the "Company") has revised its value in use calculation for its investment in Usinas ...
Based on the value in use calculations established for the Proactis SA Group, it has been necessary to recognise an impairment. The value in use calculation reflects pipeline conversion delay and the ...
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