The changes reflect a more strategic approach to the Aerospace and Industrial Materials customers all designed to support growth and opportunities unique to each business.  The new reporting structure is effective for the first quarter of 2013.  Going forward, Cytec's reportable operating segments will be as follow:The Aerospace Materials segment includes the Advanced Composites, Carbon Fiber, Structural Film Adhesives, and the Aerospace product lines from Umeco.  All product lines were previously included in the Engineered Materials segment with the exception of the Aerospace product line which was previously included in the Umeco segment. The Industrial Materials segment includes the High Performance Industrial Products, Process Materials, Structural Industrial, and the Distribution Industrial product lines.  All product lines were previously included in the Umeco segment with the exception of the High Performance Industrial Products which was previously included in the Engineered Materials segment.The In Process Separation segment is unchanged, and includes the Mining Chemicals and Phosphine's product lines. The Additive Technologies segment is unchanged, and includes the Polymer Additives, Specialty Additives, and the Formulated Resins product lines.  Shane Fleming, Chairman, President, and Chief Executive Officer said, "Our new reporting segments reflect the realigned operating structure of our business and will provide senior management and investors visibility to the business results in their respective end market segments."Reflecting these changes at the end of this release are segment results for the years ended December 31, 2012 and 2011. Also provided are each of the four quarters for the years 2012 and 2011. We have also filed a current report on Form 8-K dated April 18, 2013 and attached as exhibits to such report updated items from our Annual Report on Form 10-K for the year ended December 31, 2012 that reflect the new segment reporting structure. There is no change to our previously reported Consolidated Statements of Income, Consolidated Statements of Comprehensive Income, Consolidated Balance Sheets, Consolidated Statements of Cash Flows, or Consolidated Statements of Stockholders' Equity for the periods reported therein.Forward-Looking and Cautionary StatementsExcept for the historical information and discussions contained herein, statements contained in this release may constitute "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995. Achieving the results described in these statements involves a number of risks, uncertainties and other factors that could cause actual results to differ materially, as discussed in Cytec's filings with the Securities and Exchange Commission. Cytec disclaims any obligation to update or revise any forward-looking statements.Corporate ProfileCytec's vision is to deliver specialty material and chemical technologies beyond our customers' imagination. Our focus on innovation, advanced technology and application expertise enables us to develop, manufacture and sell products that change the way our customers do business. Our pioneering products perform specific and important functions for our customers, enabling them to offer innovative solutions to the industries that they serve. Our products serve a diverse range of end markets including aerospace and industrial materials, mining and plastics.Media Contacts

Jodi Allen

Investor Relations

Tel: 1.973.357.3283

jodi.allen@cytec.com

Tara Tepp

In Process Separation Marketing Communications

Tel: 1.973.357.3347

tara.tepp@cytec.com

Katherine Vaiente

Global Marketing Communications Manager

Tel: 1.480.730.2310

Katherine.Vaiente@cytec.com

Claire Michel

Industrial Materials Marketing Communications

Tel: 44.1773.766200

claire.michel@cytec.com

Katherine Vaiente

Global Marketing Communications Manager

Tel: 1.480.730.2310

Katherine.Vaiente@cytec.com