New York, Paris – 27 May 2013 – NYSE Euronext (NYX) today announced that Constellium N.V. (ticker: CSTM), a global leader in innovative and high value‐added aluminium products, celebrated its first days of trading and dual listing on its markets in Europe and the United States.

Constellium develops solutions for a broad scope of markets and applications, including aerospace, automotive, packaging and industry. With around 8,900 employees, Constellium generated €3.61 billion of revenue in 2012.

Constellium began trading on the New York Stock Exchange (NYSE) on 23 May 2013 and on the professional segment of NYSE Euronext in Paris today through a public offering in the United States.The listing raised a total of around €258 million/$333 million, of which the company will receive approximately $200 million before underwriters’ discounts and commissions and offering expenses.

The final offering price of Constellium was set at €11.61/$15 per share. Market capitalisation stood at around €1.2 billion/$1.5 billion on the day of listing.

Pierre Vareille, Chief Executive Officer of Constellium, said: “This is a significant milestone in the life ofConstellium that we believe will consolidate our company’s future development. Our dual listing reflects both our global positioning and our strong roots in Europe in general and France in particular.”

“We are delighted to begin a long‐term relationship with Constellium and to work with the company as it enters a new stage in its development. Listing is a major step that will raise Constellium’s profile by giving it access to a platform offering exceptional visibility with investors around the world,” added Scott Cutler, Executive Vice President and Head of Global Listings at NYSE Euronext.

Marc Lefèvre, Head of European Business Development and Client Coverage, Listings Europe, at NYSE Euronext, commented: “We would like to extend a warm welcome to Constellium, which joins the longlist of truly international companies already traded on NYSE Euronext’s professional segment in Paris. Listing underscores the energy driving Constellium, the company’s openness to the world, and its commitment to growth that serves its customers, partners and employees.”

Note:

1 NYSE Euronext’s professional segment in Paris is designed to meet the needs of international businesses and is reserved to
qualified investors. It is part of NYSE Euronext’s Regulated Market. Listing obligations are simplified, and include the use of
English for documentation, summary information for regular and exceptional publications, and simplified, faster verification
procedures.

Contact:

NYSE Euronext

Caroline Tourrier: +33 (0)1 49 27 10 82
ctourrier@nyx.com

About NYSE Euronext

NYSE Euronext (NYX) is a leading global operator of financial markets and provider of innovative trading technologies. The
company's exchanges in Europe and the United States trade equities, futures, options, fixed‐income and exchange‐traded
products. With approximately 8,000 listed issues (excluding European Structured Products), NYSE Euronext's equities markets
‐ the New York Stock Exchange, NYSE Euronext, NYSE MKT, NYSE Alternext and NYSE Arca ‐ represent one‐third of the world's
equities trading, the most liquidity of any global exchange group. NYSE Euronext also operates NYSE Liffe, one of the leading
European derivatives businesses and the world's second‐largest derivatives business by value of trading. The company offers
comprehensive commercial technology, connectivity and market data products and services through NYSE Technologies.
NYSE Euronext is in the S&P 500 index. For more information, please visit: www.nyx.com.

Disclaimer

None of the information contained in this press release constitutes an offer, solicitation or recommendation to acquire or
dispose of any security or investment or to engage in any other transaction or to provide legal, tax, accounting or investment
advice or services regarding the suitability or profitability of any security or investment. The creation of rights and obligations
in respect of financial products that are traded on the exchanges operated by NYSE Euronext’s subsidiaries shall depend
solely on the applicable rules of the market operator. NYSE Euronext offers no view on whether investments are appropriate
for you and recommends you obtain independent advice in respect of such investments. Persons wishing to trade products
available on NYSE Euronext markets or wishing to offer such products to third parties (whether by way of admission to listing
and/or trading of products, or otherwise) are advised, before doing so, to check their legal and regulatory position in the
relevant territory and to understand the related risks. NYSE Euronext does not make any recommendations regarding the
merit of any company, security or other financial product or investment identified in this press release. Similarly, NYSE
Euronext does not make any recommendation regarding the purchase or sale of any company, security, financial product or
investment, endorsed or sponsored by any company identified in this press release. This press release is not intended to be,
and shall not constitute in any way a binding or legal agreement, or impose any legal obligation or duty on NYSE Euronext or
any of its affiliates. This press release speaks only as of this date. NYSE Euronext disclaims any duty to update the information
herein.
NYSE Euronext refers to NYSE Euronext and its affiliates and references to NYSE Euronext in this publication include each and
any such company as the context dictates. NYSE Euronext, New York Stock Exchange, NYSE MKT, NYSE Alternext, NYSE Arca
and NYSE Liffe are registered marks of NYSE Euronext. © 2013, NYSE Euronext – All rights reserved.