Exhibit 99.1

Ameron Reports Higher Third-Quarter Profits

PASADENA, Calif.--(BUSINESS WIRE)--September 23, 2010--Ameron International Corporation (NYSE:AMN) today reported net income of $8.9 million, or $.96 per diluted share, in the quarter ended August 29, 2010, compared to net income of $5.9 million, or $.64 per diluted share, in the quarter ended August 30, 2009. Consolidated sales increased to $134.2 million in the third quarter of 2010, compared to $131.4 million in the third quarter of 2009.

James S. Marlen, Ameron’s Chairman, Chief Executive Officer and President stated, “We are pleased by the third-quarter profitability, especially given difficult market conditions. Overall, improvements by Water Transmission and Infrastructure Products were offset by a decline by Fiberglass-Composite Pipe. Fiberglass-Composite Pipe experienced a shift to lower-margin industrial projects and increased raw material costs.”

Year-to-date net income totaled $19.5 million, or $2.11 per diluted share, in 2010, compared to $19.2 million, or $2.08 per diluted share, in 2009. Sales for the first nine months of 2010 totaled $379.8 million, compared to $410.3 million in 2009.

Fiberglass-Composite Pipe Group’s third-quarter sales increased 6% to $60.1 million, but segment income decreased 13% to $14.8 million in 2010, compared to 2009. Third-quarter sales increased in key onshore oilfield and mining markets in North and South America. Sales from Asian operations into marine and offshore energy exploration and production markets declined and were replaced by lower-margin industrial sales. In Brazil, sales growth came from the municipal water markets and from the new Centron operation which produces onshore oil field piping. Most of the Group’s worldwide, consolidated operations had lower third-quarter profits in 2010. Profits declined throughout the Group due to higher raw material costs. Additionally, profits in Asia were impacted by a shift to lower-margin industrial projects. The Group’s 2010 third-quarter profits included income related to dividends from an affiliated company in Saudi Arabia of $1.9 million. Orders for marine and offshore projects softened in recent months; however, looking forward, the Fiberglass-Composite Pipe Group continues to see strong demand due primarily to energy-related projects.

Infrastructure Products Group’s sales were lower in the third quarter of 2010 due to the weakness in residential and commercial construction markets. Pole Products’ sales and segment income were lower in 2010, compared to 2009; while the Hawaii Division’s segment income improved on lower sales. The Group’s combined sales declined $2.2 million, or 6%; while combined segment income increased $1.0 million, or 41%. Sales of steel poles for transportation projects and concrete poles for new construction projects remained sluggish. Demand for aggregates on both Oahu and Maui fell as construction spending in Hawaii continued to be impacted by the recessionary economy. Hawaii’s profits rose due to expanded and improved quarry operations on Oahu and certain higher-margin projects completed in 2010. The State of Hawaii’s fiscal challenges and the lower level of tourism are expected to delay a recovery in Hawaiian construction. Demand for poles appears to have stabilized. However, significant recovery of the Infrastructure Products Group is not expected in the short term.

Water Transmission Group’s sales and profits were higher in the third quarter of 2010, compared to the same period in 2009. The profitability of the water pipe business improved, while the profitability of the wind tower business was flat. The Group’s combined sales increased $1.7 million, or 4%, due to higher pipe sales than in the third quarter of 2009. As anticipated, water pipe sales improved in the third quarter due to several large projects in Northern California. Wind tower sales declined in the third quarter of 2010, compared to the third quarter of 2009. New tower orders remain elusive due to weak wind energy markets and the inability of wind farm developers to obtain project financing. The wind tower business is not expected to recover in the near term. The water pipe business was also affected by the low bid activity due to tight municipal and state budgets, the lack of available project financing and the timing of construction of major water transmission pipelines. While a number of wind tower and pipe projects are being followed and planning activities have increased, it remains uncertain when owners, water agencies and municipalities will proceed with these projects.

TAMCO’s sales increased in the third quarter of 2010, compared to the same period in 2009. Shipments in 2010 remained well below TAMCO’s production capacity. TAMCO’s net loss in the third quarter of 2010 totaled $.4 million, compared to a loss of $.7 million in 2009. Ameron’s share of TAMCO’s net loss was $.2 million after taxes in 2010, compared to a loss of $.3 million in 2009. On September 15, 2010, the Company announced an agreement to sell its 50% ownership of TAMCO to Gerdau Ameristeel US Inc.

“While 2010 continues to be challenging, we are pleased with third-quarter results and are cautiously optimistic for the balance of the year. The Company will be led by the Fiberglass-Composite Pipe Group and constrained by the cyclical, construction-related businesses. We are focusing on controlling costs to maximize profits in spite of weak markets and are actively reviewing all operations for improvements. Likewise, we are investing in expanding and enhancing the Company’s capabilities and markets. Additionally, the Company will be reviewing cash deployment strategies for the TAMCO sale proceeds, including pursuing acquisitions within its core business units or in closely-related businesses and other financial options. While forecasting visibility remains limited, recovery in the Company’s markets appears to be slower than anticipated. We remain optimistic that as the global economy recovers and stabilizes, the Company will capitalize on its strong market positions and achieve superior long-term results,” James S. Marlen concluded.

About Ameron International Corporation

Ameron International Corporation is a multinational manufacturer of highly-engineered products and materials for the chemical, industrial, energy, transportation and infrastructure markets. Traded on the New York Stock Exchange (AMN), Ameron is a leading producer of water transmission lines and fabricated steel products, such as wind towers; fiberglass-composite pipe for transporting oil, chemicals and corrosive fluids and specialized materials; and products used in infrastructure projects. The Company’s businesses operate in North America, South America, Europe and Asia. The Company also has partial ownership in several unconsolidated affiliates in the U.S. and the Middle East.

All statements in this press release and in all future press releases that do not directly and exclusively relate to historical facts constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. These statements represent the intentions, plans, expectations and beliefs of Ameron International Corporation (the “Company” or “Ameron”), and are subject to risks, uncertainties and other factors, many of which are outside the Company’s control. These factors could cause actual results to differ materially from such forward-looking statements. For a written description of these factors, see the section titled “Risk Factors” in the Company’s Annual Report on Form 10-K for the period ended November 30, 2009. The Company disclaims any intention or obligation to update these forward-looking statements whether as a result of subsequent events or otherwise except as required by law.

CONTACT:
Ameron International Corporation
James S. Marlen, Chairman, Chief Executive Officer and President
Gary Wagner, Senior Vice President, Finance and Administration & Chief Financial Officer
James R. McLaughlin, Senior Vice President, Corporate Development & Treasurer
Telephone: 626-683-4000