RTI will expand Alcoa’s advanced manufacturing and materials technologies. Its high-velocity machining, forming, extruding and parts assembly operations will enable Alcoa to produce some of the largest, most complex aerospace components. Advanced titanium powder metallurgy and processing technology will enable cost-effective production of near net shape aerospace components, as well as medical devices and oil and gas products. RTI will expand Alcoa’s additive manufacturing capabilities, such as 3-D printing, to produce titanium, specialty metals and plastic parts for aerospace, medical and energy applications. RTI also grows Alcoa’s portfolio of cutting-edge materials, including titanium-aluminides, complementing Alcoa’s industry leadership in metallics. Titanium-aluminides are increasingly used to manufacture lightweight, aerodynamic jet engine parts for high-volume, next-generation jet engines.

Timing

The transaction, which has been approved by the Boards of Directors of both companies, remains subject to customary conditions and receipt of regulatory approvals and RTI shareholder approval. Alcoa and RTI expect to obtain all required regulatory clearances and RTI shareholder approval in order to close the transaction in three to six months.

Greenhill & Co. and Morgan Stanley are acting as financial advisors to Alcoa, and Wachtell, Lipton, Rosen & Katz is serving as legal counsel. Barclays is acting as the sole financial advisor to RTI, and Jones Day is serving as legal counsel.

Conference Call Information

Alcoa will host a conference call at 8:30 AM Eastern Daylight Time on March 9, 2015 to discuss the transaction. The meeting will be webcast via alcoa.com. Call information and related details are available at  www.alcoa.com under “Invest.” Presentation materials used during this meeting will be available for viewing at 7:15 AM EDT at  www.alcoa.com. A replay of the call will be available from 12:30 PM EDT on March 9 until March 23 at 11:59 PM EDT.

Additional resources: Go to www.alcoa.com/RTI for more information, photos and b-roll.

About Alcoa

A global leader in lightweight metals technology, engineering and manufacturing, Alcoa innovates multi-material solutions that advance our world. Our technologies enhance transportation, from automotive and commercial transport to air and space travel, and improve industrial and consumer electronics products. We enable smart buildings, sustainable food and beverage packaging, high-performance defense vehicles across air, land and sea, deeper oil and gas drilling and more efficient power generation. We pioneered the aluminum industry over 125 years ago, and today, our approximately 59,000 people in 30 countries deliver value-add products made of titanium, nickel and aluminum, and produce best-in-class bauxite, alumina and primary aluminum products. For more information, visit  www.alcoa.com, follow @Alcoa on Twitter at www.twitter.com/Alcoa and follow us on Facebook at www.facebook.com/Alcoa.

About RTI International Metals

RTI International Metals, Inc. is a leading vertically integrated global supplier of advanced titanium and specialty metal products and services to commercial aerospace, defense, energy, medical device and other customers across the entire supply chain. For more than 60 years, RTI has been taking titanium further through advanced manufacturing and engineering processes. RTI delivers a full range of titanium mill products as well as other titanium and specialty metals products and services including extruded shapes, formed and 3D-printed parts, and precision engineered and machined components through our downstream integrated supply chain.

Headquartered in Pittsburgh, PA, RTI has locations in the United States, Canada, Europe, and Asia. To learn more about RTI International Metals, Inc., visit our website at www.rtiintl.com.

Forward-Looking Statements

Certain statements in this release, including statements regarding the proposed acquisition of RTI International Metals (RTI) by Alcoa, the expected timing, closing and benefits of the transaction, the expected synergies, the expected contribution of RTI to Alcoa’s revenues and profitability, the expected acceleration of Alcoa’s portfolio transformation, the expected size, scope and growth of the combined company’s operations and the markets in which it will operate, including the aerospace market, the anticipated issuance of Alcoa common stock in exchange for RTI stock in the transaction, as well as Alcoa’s plans, objectives, strategy, and intentions, may contain words such as “anticipates,” “believes,” “could,” “estimates,” “expects,” “forecasts,” “intends,” “may,” “outlook,” “plans,” “projects,” “seeks,” “sees,” “should,” “targets,” “will,” or other words of similar meaning that constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are based on Alcoa’s current expectations, estimates, forecasts and projections about the proposed transaction and the operating environment, economies and markets in which Alcoa and RTI operate. In making these statements, Alcoa has made assumptions with respect to: the ability of Alcoa and RTI to achieve expected synergies and the timing of same; the ability of Alcoa and RTI to predict and adapt to changing customer requirements, demand, and preferences; future capital expenditures, including the amount and nature thereof; trends and developments in the aerospace, metals engineering (including aluminum and titanium), advanced manufacturing, and other sectors of the economy that are related to these sectors; business strategy and outlook; expansion and growth of business and operations; credit risks; future results being similar to historical results; expectations related to future general economic and market conditions; and other matters, many of which are beyond Alcoa’s control. Alcoa’s beliefs and assumptions are inherently subject to significant business, economic, competitive and other uncertainties and contingencies regarding future events and as such, are subject to change and may prove to be inaccurate. Actual results or events could differ materially from those contemplated in forward-looking statements as a result of numerous risks and uncertainties, including: (a) the risk that the businesses will not be integrated successfully or such integration may be more difficult, time-consuming or costly than expected, which could result in additional demands on Alcoa’s resources, systems, procedures and controls, disruption of its ongoing business and diversion of management’s attention from other business concerns; (b) the effect of an increased number of Alcoa shares outstanding as a result of the proposed transaction; (c) the possibility that certain assumptions with respect to RTI or the proposed transaction could prove to be inaccurate; (d) failure to receive the required votes of RTI’s shareholders to approve the transaction; (e) failure to receive, delays in the receipt of, or unacceptable or burdensome conditions imposed in connection with, all required regulatory approvals of the proposed transaction, or the failure to satisfy the other closing conditions to the proposed transaction; (f) the potential failure to retain key employees of Alcoa or RTI as a result of the proposed transaction or during integration of the businesses; (g) potential sales of Alcoa common stock issued in the acquisition; (h) the potential loss of customers, suppliers, and other business relationships of Alcoa or RTI as a result of the transaction; (i) consequences of investigations by governmental agencies or regulatory authorities; (j) the failure to capitalize on anticipated growth in the commercial aerospace market; and (k) the other risk factors summarized in Alcoa’s Form 10-K for the year ended December 31, 2014, 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. Market projections are subject to the risks discussed above and other risks in the market. Nothing on Alcoa’s website is included or incorporated by reference herein.