MVK Maverick Tube

Maverick Tube Corporation (NYSE:MVK) announced today that the Colombian Superintendence of Industry and Commerce has completed its review of the proposed merger with Tenaris S.A. and has cleared the proposed merger without conditions. The Colombian condition precedent in the merger agreement with Tenaris is now satisfied. The proposed merger has now been cleared by competition authorities in all jurisdictions in which such clearance is a condition precedent to the transaction. Maverick's special meeting of stockholders to vote on the proposed merger is scheduled for October 2, 2006. Maverick Tube Corporation is a St. Louis, Missouri based manufacturer of tubular products in the energy industry for exploration, production, and transmission, as well as industrial tubing products (steel electrical conduit, standard pipe, pipe piling, and mechanical tubing) used in various applications. Forward-Looking Statements This news release contains forward-looking information that is based on assumptions that are subject to numerous business risks, many of which are beyond the control of Maverick. Furthermore, statements about the expected timing, completion and effects of the proposed merger and all other statements in this filing other than historical facts, constitute forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Readers are cautioned not to place undue reliance on these forward-looking statements and any such forward-looking statements are qualified in their entirety by reference to the following cautionary statements. All forward-looking statements speak only as of the date hereof and are based on current expectations and involve a number of assumptions, risks and uncertainties that could cause the actual results to differ materially from such forward-looking statements. Maverick may not be able to complete the proposed merger because of a number of factors, including the failure of Maverick's stockholders to approve the merger, the failure to obtain regulatory approvals or the failure to satisfy other closing conditions. Factors that may affect the business or financial results of Maverick include those described under "Risk Factors" and elsewhere in Maverick's Form 10-K for its year ended December 31, 2005, as amended. Maverick assumes no obligation to update any forecast or forward-looking statements included in this document, except as required by law. Additional Information and Where to Find It In connection with the solicitation of proxies by Maverick with respect to the meeting of its stockholders on October 2, 2006 with respect to the proposed merger, Maverick filed a definitive proxy statement with the Securities and Exchange Commission (the "SEC") on September 1, 2006 and has furnished the definitive proxy statement to its stockholders. Maverick has also filed other relevant documents with the SEC in connection with the proposed transaction. BEFORE MAKING ANY VOTING DECISION WITH RESPECT TO THE PROPOSED MERGER, STOCKHOLDERS OF MAVERICK ARE ADVISED TO READ THE DEFINITIVE PROXY STATEMENT BECAUSE IT CONTAINS IMPORTANT INFORMATION. Stockholders can obtain a free-of-charge copy of the definitive proxy statement and other relevant documents filed with the SEC from the SEC's web site at http://www.sec.gov. Stockholders can also obtain a free-of-charge copy of the definitive proxy statement and other relevant documents by directing a request by mail or telephone to Maverick Tube Corporation, 16401 Swingley Ridge Road, Suite 700, Chesterfield, Missouri 63107, Attention: Joyce M. Schuldt, Telephone: 636-733-1600, or from Maverick's website, www.mavericktube.com. Participants in the Solicitation Maverick and certain of its directors and executive officers may, under the rules of the SEC, be deemed to be "participants" in the solicitation of proxies from its stockholders in connection with the proposed merger. Information concerning the interests of the persons who may be considered "participants" in the solicitation is set forth in Maverick's proxy statement relating to the proposed merger described above.