Tenaris lists 10 executives, led by Gabriel Podskubka, Chief Executive Officer (age 51). Carlos Gomez Alzaga is the company's Chief Financial Officer (age 54).
The average age of the executives with a known age is 57; the youngest is 51 and the oldest 69.
Titles, ages and pay from company filings.

Chief Executive Officer
Chief Financial Officer
Chief Technology Officer
Chief Human Resources Officer
President of Mexico
President of U.S.A
Chief Supply Chain Officer
President of Europe
Chief Industrial Officer
President of Southern Cone
Gabriel Podskubka (Chief Executive Officer), age 51.
Carlos Gomez Alzaga (Chief Financial Officer), age 54.
Gabriel Podskubka (Chief Executive Officer), Carlos Gomez Alzaga (Chief Financial Officer), Lucas Pigliacampo (Chief Technology Officer), Luis Scartascini (Chief Human Resources Officer) and Sergio de la Maza (President of Mexico), and 5 more.