WHEN: Friday May 3rd 2019 MARK YOUR CALENDAR Dear Financial Community Member: Tenaris S.A. would like to invite you to participate in a conference call to discuss the Company's First Quarter 2019 results. Please note that the press release will be issued after market close on Thursday, May 2nd 2019. Representing Tenaris will be Paolo Rocca, Chairman and Chief Executive Officer; Germán Curá, Board member and Vice Chairman, Guillermo Vogel, Board member and Vice Chairman; Edgardo Carlos, Chief Financial Offic ...