History

History

Tenaris has evolved into a global business through a series of strategic investments throughout the past two decades. Find out more about our growth and industrial roots, a story that spans more than 100 years.

 

Our milestones

1909

Dalmine begins manufacturing seamless steel tubes in Italy.

1914

Nippon Kokan Kabushiki-gaisha (NKK) begins manufacturing seamles steel tubes in Japan.

1924

Dalmine is listed on the Milan Stock Exchange.

1935

Agostino Rocca, the future founder of the Techint Group of Companies, becomes Managing Director at Dalmine.

1953

Tamsa is listed on the Mexican Stock Exchange.

1954

Tamsa begins operations in Mexico and Siderca in Argentina.
Both plants are constructed by Techint.

1958

Siderca is listed on the Buenos Aires Stock Exchange.

1960

Confab, a Brazilian manufacturer of industrial equipment, begins to produce welded steel tubes.

1967

Tamsa is listed on the American Stock Exchange, becoming the first Mexican company to be listed on a U.S. Stock Exchange through an American Depositary Receipts (ADR) program.

1980

Algoma orders North America's first retained mandrel seamless tube mill.

1986

Siderca takes over Siat, an Argentine welded pipe manufacturer established in 1948.

1993

Siderca acquires a controlling interest in Tamsa and forms a strategic alliance.

1996

Siderca acquires a controlling interest in Dalmine following its privatization. With Tamsa, this strategic alliance becomes DST.

1998

Siderca acquires TAVSA.

1999

Siderca acquires control of Confab.

2000

Siderca and NKK Corporation form NKKTubes to take over NKK's seamless tube manufacturing business at Keihin Works (Tokyo, Japan).


Siderca leases Algoma Steel's seamless steel tube plant and begins operating AlgomaTubes.

2001

The Tenaris brand name is introduced, replacing DST.
Siderca is listed on the New York Stock Exchange (NYSE).

2002

Tenaris S.A., a company incorporated in Luxembourg, becomes the group holding company following an exchange offer for the shares of Siderca, Tamsa and Dalmine and is simultaneously listed on the New York, Milan, Buenos Aires and Mexican stock exchanges.

2004

Tenaris acquires control of Silcotub, a Romanian manufacturer of seamless steel pipes.

2006

Tenaris establishes a strong presence in the U.S. through the acquisition of Maverick Tube Corp. At the same time, its presence in Canada is expanded with Prudential and it establishes a presence in Colombia through TuboCaribe.

2007

With Hydril, Tenaris expands its offer of products and services for the oil& and& gas industry.

2009

Tenaris extends its presence in the Far East through the integration of SPIJ, an Indonesian OCTG processing operation.


Venezuela nationalizes TAVSA.
2010

Inauguration of new threading facility in Saudi Arabia.

2011

Tenaris opens its new rolling mill at the Tenaris Industrial Center in Veracruz.

2012

Tenaris announces construction of first seamless facility in the United States.