Tenaris S.A. (the “Company”) was established as a public limited liability company (
societé anonyme
) under the laws of the Grand-Duchy of Luxembourg on 
 December 17, 2001. 
The Company holds, either directly or indirectly, controlling interests in various subsidiaries in the steel pipe manufacturing and distribution businesses. References in these Consolidated Financial Statements to “Tenaris” refer to the Company and its consolidated subsidiaries. A list of the principal Company’s subsidiaries is included in Note 
30
 to these Consolidated Financial Statements.
The Company’s shares trade on the Buenos Aires Stock Exchange, the Italian Stock Exchange and the Mexican Stock Exchange; the Company’s American Depositary Securities (“ADS”) trade on the New York Stock Exchange.