Exhibit 99

[Alcoa logo]

FOR IMMEDIATE RELEASE

Investor Contact	Media Contacts
Kelly Pasterick	Monica Orbe
(212) 836-2674	(212) 836-2632
Kelly.Pasterick@alcoa.com	Monica.Orbe@alcoa.com

Alcoa Issues Statement on Moody’s Ratings Change

New York, May 29, 2013 – While we are disappointed by Moody’s decision today, we remain committed to maintaining our investment grade rating and will continue to execute on our strategy and our 2013 goal of generating positive free cash flow.

We believe Moody’s decision is a greater reflection of macroeconomic conditions and the volatility of metal prices than a true reflection of the financial and operating strength of Alcoa.

We have a strong balance sheet and liquidity position with limited near-term bond maturities.

About Alcoa

Alcoa is the world’s leading producer of primary and fabricated aluminum, as well as the world’s largest miner of bauxite and refiner of alumina. In addition to inventing the modern-day aluminum industry, Alcoa innovation has been behind major milestones in the aerospace, automotive, packaging, building and construction, commercial transportation, consumer electronics and industrial markets over the past 125 years. Among the solutions Alcoa markets are flat-rolled products, hard alloy extrusions, and forgings, as well as Alcoa® wheels, fastening systems, precision and investment castings, and building systems in addition to its expertise in other light metals such as titanium and nickel-based super alloys. Sustainability is an integral part of Alcoa’s operating practices and the product design and engineering it provides to customers. Alcoa has been a member of the Dow Jones Sustainability Index for 11 consecutive

years and approximately 75 percent of all of the aluminum ever produced since 1888 is still in active use today. Alcoa employs approximately 61,000 people in 30 countries across the world. For more information, visit www.alcoa.com and follow @Alcoa on Twitter at twitter.com/Alcoa and follow Alcoa on Facebook at www.facebook.com/Alcoa.

Forward-Looking Statements

This release contains statements that relate to future events and expectations and as such constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements include those containing such words as “anticipates,” “estimates,” “expects,” “forecasts,” “intends,” “outlook,” “plans,” “projects,” “should,” “targets,” “will,” or other words of similar meaning. All statements that reflect Alcoa’s expectations, assumptions or projections about the future other than statements of historical fact are forward-looking statements, including, without limitation, forecasts concerning global demand growth for aluminum, end market conditions, supply/demand balances, and growth opportunities for aluminum in automotive, aerospace, and other applications, trend projections, targeted financial results or operating performance, and statements about Alcoa’s strategies, outlook, and business and financial prospects. Forward-looking statements are subject to a number of known and unknown risks, uncertainties, and other factors and are not guarantees of future performance. Important factors that could cause actual results to differ materially from those expressed or implied in the forward-looking statements include: (a) material adverse changes in aluminum industry conditions, including global supply and demand conditions and fluctuations in London Metal Exchange-based prices for primary aluminum, alumina, and other products, and fluctuations in indexed-based and spot prices for alumina; (b) deterioration in global economic and financial market conditions generally; (c) unfavorable changes in the markets served by Alcoa, including aerospace, automotive, commercial transportation, building and construction, distribution, packaging, defense, and industrial gas turbine; (d) the impact of changes in foreign currency exchange rates on costs and results, particularly the Australian dollar, Brazilian real, Canadian dollar, euro, and Norwegian kroner; (e) increases in energy costs, including electricity, natural gas, and fuel oil, or the unavailability or interruption of energy supplies; (f) increases in the costs of other raw materials, including calcined petroleum coke, caustic soda, and liquid pitch; (g) Alcoa’s inability to achieve the level of revenue growth, cash generation, cost savings, improvement in profitability and margins, fiscal discipline, or strengthening of competitiveness and operations (including moving its alumina refining and aluminum smelting businesses down on the industry cost curves and increasing revenues in its Global Rolled Products and Engineered Products and Solutions segments) anticipated from its restructuring programs, productivity improvement, cash sustainability, and other initiatives; (h) Alcoa’s inability to realize expected benefits, in each case as planned and by targeted completion dates, from sales of non-core assets, or from newly constructed, expanded, or acquired facilities, such as the upstream operations in Brazil and investments in hydropower projects in Brazil, or from international joint ventures, including the joint venture in Saudi Arabia; (i) political, economic, and regulatory risks in the countries in which Alcoa operates or sells products, including unfavorable changes in laws and governmental policies, civil unrest, or other events beyond Alcoa’s control; (j) failure to maintain investment grade credit ratings which could limit Alcoa’s ability to obtain future financing, increase its borrowing costs, adversely affect the market price of its existing securities, or otherwise impair its business, financial condition and results of operations; (k) the outcome of contingencies, including legal proceedings, government investigations, and environmental remediation; (l) the business or financial condition of key customers, suppliers, and business partners; (m) adverse changes in tax rates or benefits; (n) adverse changes in discount rates or investment returns on pension assets; (o) the impact of cyber attacks and potential information technology or data security breaches; and (p) the other risk factors summarized in Alcoa’s Form 10-K for the year ended December 31, 2012, and other reports filed with the Securities and Exchange Commission. Alcoa disclaims any obligation to update publicly any forward-looking statements, whether in response to new information, future events or otherwise, except as required by applicable law.