Management Production Oil and Gas Services Scientific and Technical Center Sales and Marketing

TMK’s structure is organized on the basis of geography. In 2009, the Company acquired the assets that make up the European division. A year earlier, the Company’s American division, TMK IPSCO, was formed from assets acquired in the United States. These divisions, together with the Russian division, make up TMK’s operational segments. The table below depicts these segments as of December 31, 2010.