Ameron International Corporation (NYSE: AMN) today announced that its Board of Directors declared a quarterly dividend of 30 cents per share of common stock, payable November 15, 2011 to stockholders of record on October 3, 2011. Under the terms of the previously announced agreement and plan of merger, dated as of July 1, 2011, by and among Ameron, National Oilwell Varco, Inc. (NYSE:NOV) and NOV Sub A, Inc., if the closing of the merger occurs following October 3, 2011 and prior to payment of the quarterly dividend, the unpaid dividend will be payable as of the closing date of the merger, to Ameron stockholders as of the record date of the dividend. Ameron expects the merger to close on October 5, 2011, after approval by Ameron’s stockholders. About Ameron International Ameron is a multinational manufacturer of highly-engineered products and materials for the chemical, industrial, energy, transportation and infrastructure markets. Ameron is a leading producer of fiberglass-composite pipe for transporting oil, chemicals and corrosive fluids, and specialized materials and products used in infrastructure projects, such as poles and construction materials in Hawaii. Ameron is also a leading provider of water transmission lines and fabricated steel products, such as wind towers. Ameron operates businesses in North America, South America, Europe and Asia, has a presence through affiliated companies in the Middle East, and has approximately 2,900 employees and 25 manufacturing locations on a worldwide basis. Statements made in this press release that are forward-looking in nature are intended to be “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements relate to a variety of matters, including but not limited to: the timing and anticipated completion of the proposed transaction and other statements that are not purely statements of historical fact. These forward-looking statements are made on the basis of the current beliefs, expectations and assumptions of the management of Ameron and are subject to significant risks and uncertainty. Readers are cautioned not to place undue reliance on any such forward-looking statements. All such forward-looking statements speak only as of the date they are made, and, except as required by law, Ameron does not undertake any obligation to update or revise these statements, whether as a result of new information, future events or otherwise.