Georgia Gulf Board of Directors Declares Quarterly Dividend and Announces Special Meeting of Stockholders to be held on January 10, 201317:01 EST Tuesday, December 11, 2012 ATLANTA (Business Wire) -- The Board of Directors of Georgia Gulf Corporation (NYSE: GGC) today declared a quarterly dividend of 8 cents per share of common stock. The dividend is payable December 28, 2012, to shareholders of record at the close of business on December 21, 2012. As previously disclosed, the Board of Directors has called a special meeting to be held on January 10, 2013, for shareholders of record on November 26, 2012, to approve the issuance of Georgia Gulf shares in the proposed merger with PPG's commodity chemicals business and to approve other matters described in the proxy statement dated December 6, 2012. The terms of the proposed transaction call for PPG to form a new company by separating its commodity chemicals business through a spinoff or split off, and then immediately thereafter merging that business with a Georgia Gulf subsidiary in a Reverse Morris Trust transaction. The proposed merger would result in PPG shareholders receiving approximately 50.5 percent of the shares of the merged company (“The Newly Merged Company”), with existing Georgia Gulf shareholders owning approximately 49.5 percent of The Newly Merged Company. Additionally, The Newly Merged Company expects to assume approximately $95 million of debt, about $87 million of minority interest, and related environmental liabilities, pension assets and liabilities and other post-employment benefits (OPEB) obligations of PPG's commodity chemicals business. The transaction is subject to approval by Georgia Gulf shareholders and customary closing conditions, relevant tax authority rulings and regulatory approvals, and is expected to be completed in early 2013. About Georgia Gulf Georgia Gulf Corporation is a leading, integrated North American manufacturer of two chemical lines, chlorovinyls and aromatics, and manufactures vinyl-based building and home improvement products. The Company's vinyl-based building and home improvement products, marketed under Royal Building Products and Exterior Portfolio brands, include window profiles, patio doors, mouldings, siding, pipe and pipe fittings, soffit, rain ware and decking. Georgia Gulf, headquartered in Atlanta, Georgia, has manufacturing facilities located throughout North America to provide industry-leading service to customers. For more information, visit www.ggc.com. Safe Harbor This communication contains certain statements relating to future events and our intentions, beliefs, expectations, and predictions for the future. Any such statements other than statements of historical fact are forward-looking statements within the meaning of the Securities Act of 1933 and the Securities Exchange Act of 1934. Words or phrases such as “will likely result,” “are expected to,” “will continue,” “is anticipated,” “we believe,” “we expect,” “estimate,” “project,” “may,” “will,” “intend,” “plan,” “believe,” “target,” “forecast,” “would” or “could” (including the negative or variations thereof) or similar terminology used in connection with any discussion of future plans, actions, or events, including with respect to the proposed separation of PPG's commodity chemicals business from PPG and the merger of the PPG commodity chemicals business and Georgia Gulf (the “Transaction”), generally identify forward-looking statements. These forward-looking statements include, but are not limited to, statements regarding the expected benefits of the Transaction, and the expected timing of completion of the Transaction, and Georgia Gulf's anticipated future financial and operating performance and results, including its respective estimates for growth. These statements are based on the current expectations of the management of Georgia Gulf. There are a number of risks and uncertainties that could cause Georgia Gulf's actual results to differ materially from the forward-looking statements included in this communication. These risks and uncertainties include risks relating to (i) Georgia Gulf's ability to obtain requisite shareholder approval to complete the Transaction, (ii) PPG being unable to obtain necessary tax authority and other regulatory approvals required to complete the Transaction, or such required approvals delaying the Transaction or resulting in the imposition of conditions that could have a material adverse effect on the combined company or causing the companies to abandon the Transaction, (iii) other conditions to the closing of the Transaction not being satisfied, (iv) a material adverse change, event or occurrence affecting Georgia Gulf or the PPG commodity chemicals business prior to the closing of the Transaction delaying the Transaction or causing the companies to abandon the Transaction, (v) problems arising in successfully integrating the businesses of the PPG commodity chemicals business and Georgia Gulf, which may result in the combined company not operating as effectively and efficiently as expected, (vi) the possibility that the Transaction may involve other unexpected costs, liabilities or delays, (vii) the businesses of each respective company being negatively impacted as a result of uncertainty surrounding the Transaction, (viii) disruptions from the Transaction harming relationships with customers, employees or suppliers, and (ix) uncertainties regarding future prices, industry capacity levels and demand for Georgia Gulf's products, raw materials and energy costs and availability, feedstock availability and prices, changes in governmental and environmental regulations, the adoption of new laws or regulations that may make it more difficult or expensive to operate Georgia Gulf's businesses or manufacture its products before or after the Transaction, Georgia Gulf's ability to generate sufficient cash flows from its business before and after the Transaction, future economic conditions in the specific industries to which its products are sold, and global economic conditions. In light of these risks, uncertainties, assumptions, and factors, the forward-looking events discussed in this communication may not occur. Other unknown or unpredictable factors could also have a material adverse effect on Georgia Gulf's actual future results, performance, or achievements. For a further discussion of these and other risks and uncertainties applicable to Georgia Gulf and its business, see Georgia Gulf's Annual Report on Form 10-K for the fiscal year ended December 31, 2011 and subsequent filings with the Securities and Exchange Commission (the “SEC”). As a result of the foregoing, readers are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this communication. Georgia Gulf does not undertake, and expressly disclaims, any duty to update any forward-looking statement whether as a result of new information, future events, or changes in its expectations, except as required by law. Additional Information and Where to Find it This communication does not constitute an offer to buy, or solicitation of an offer to sell, any securities of Georgia Gulf, and no offer or sale of such securities will be made in any jurisdiction where it would be unlawful to do so. In connection with the Transaction, Georgia Gulf filed a definitive proxy statement on Schedule 14A with the Securities and Exchange Commission (“SEC”) on December 6 2012, which was sent to stockholders of Georgia Gulf seeking approval for the issuance of shares of Georgia Gulf common stock in connection with the Transaction and the other matters described in the proxy statement. In addition, Georgia Gulf has filed a registration statement (including a prospectus) on Form S-4 (Registration No. 333-183724) with the SEC relating to the Transaction. The registration statement has not yet been declared effective. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE PROXY STATEMENT AND THE PROSPECTUS FORMING PART OF THE REGISTRATION STATEMENT, AND ANY OTHER RELEVANT DOCUMENTS BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT GEORGIA GULF, PPG'S COMMODITY CHEMICALS BUSINESS AND THE TRANSACTION. Investors and security holders will be able to obtain these materials and other documents filed with the SEC free of charge at the SEC's website, www.sec.gov. In addition, copies of the registration statement and proxy statement may be obtained free of charge by accessing Georgia Gulf's website at www.GGC.com by clicking on the “Investors” link and then clicking on the “SEC Filings” link, or upon written request to Georgia Gulf at 115 Perimeter Center Place, Suite 460, Atlanta, Georgia 30346, Attention: Investor Relations. Shareholders may also read and copy any reports, statements and other information filed by Georgia Gulf with the SEC, at the SEC public reference room at 100 F Street, N.E., Washington D.C. 20549. Please call the SEC at 1-800-SEC-0330 or visit the SEC's website for further information on its public reference room. Participants in the Solicitation Georgia Gulf, PPG, and certain of their respective directors, executive officers and other members of management and employees may be deemed to be participants in the solicitation of proxies from shareholders in respect of the Transaction under the rules of the SEC. Information regarding Georgia Gulf's directors and executive officers is available in its 2011 Annual Report on Form 10-K filed with the SEC on February 24, 2012, and in its definitive proxy statement filed with the SEC on April 16, 2012, in connection with its 2012 annual meeting of stockholders. Information regarding PPG directors and executive officers is available in its 2011 Annual Report on Form 10-K filed with the SEC on February 16, 2012, and in its definitive proxy statement filed with the SEC on March 8, 2012, in connection with its 2012 annual meeting of stockholders. Other information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise is contained in the registration statement and the prospectus that is a part thereof and the proxy statement and other relevant materials filed with the SEC. Georgia GulfInvestor RelationsMartin Jarosick, 770-395-4524orMediaAlan Chapple, 770-395-4538chapplea@ggc.com