Additional Information and Where to Find ItThis communication does not constitute an offer to buy, or solicitation of an offer to sell, any securities of Georgia Gulf, PPG's commodity chemicals business or PPG. In connection with the Transaction, Georgia Gulf has filed with the SEC a registration statement on Form S-4 that includes a prospectus of Georgia Gulf relating to the Transaction. In addition, Eagle Spinco Inc., a subsidiary of PPG Industries, has filed with the SEC a registration statement on Form S-4 and S-1 that includes a prospectus of the PPG commodity chemicals business relating to the Transaction. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE REGISTRATION STATEMENTS AND PROSPECTUS, 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 may 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 statements and prospectus may be obtained free of charge by accessing Georgia Gulf's website at www.ggc.com and clicking on the “Investors” link and then on the “SEC Filings” link, or upon written request to Georgia Gulf, Georgia Gulf Corporation, 115 Perimeter Center Place, Suite 460, Atlanta, GA 30346, Attention: Investor Relations, or from PPG upon written request to PPG, PPG Industries, Inc., One PPG Place, Pittsburgh, PA 15272, Attention: Investor Relations. Shareholders also may read and copy any reports, statements and other information filed by Georgia Gulf, PPG or Eagle Spinco with the SEC at the SEC public reference room at 100 F Street, N.E., Washington, DC 20549. Please call the SEC at 1-800-SEC-0330 or visit the SEC's website for further information on its public reference room. Post-Commencement Written Communications In connection with the exchange offer for the split-off of the shares of common stock of Eagle Spinco, PPG filed on December 27, 2012, a tender offer statement with the SEC. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE TENDER OFFER STATEMENT, BECAUSE IT CONTAINS IMPORTANT INFORMATION. Investors and security holders may obtain a free copy of the tender offer statement and other documents filed by PPG with the SEC from the SEC’s web site at www.sec.gov.