Corporate Office MEMC Electronic Materials, Inc. 501 Pearl Drive (City of O’Fallon) St. Peters, Missouri 63376 (636) 474-5000 www.memc.com Transfer Agent and Registrar Computershare Investor Services, L.L.C. 2 North LaSalle Street P.O. Box A3504 Chicago, Illinois 60690-3504 (312) 360-5433 www.computershare.com Stockholder Inquiries Inquiries regarding address corrections, lost certificates, changes of registration, stock certificate holdings and other stockholder account matters should be directed to MEMC’s transfer agent, Computershare Investor Services, L.L.C., at the address or phone number above. Common Stock Listing MEMC’s common stock is traded on the New York Stock Exchange under the symbol “WFR”. On December 31, 2007, the Company had 282 stockholders of record. | Form 10-K Stockholders may obtain a copy of MEMC’s Annual Report on Form 10-K and related financial statement schedules for the year ended December 31, 2007, filed with the Securities and Exchange Commission, by writing MEMC’s Investor Relations Department or by calling (636) 474-5000. Certifications The New York Stock Exchange (NYSE) requires that our Chief Executive Officer file an annual certificate indicating that he is unaware of any violations of the NYSE listing standards. This certification was executed without qualification by our Chief Executive Officer in May 2007 and filed after our 2007 annual meeting of stockholders. In addition, the Chief Executive Officer and Chief Financial Officer filed certifications with the SEC regarding the quality of our public disclosure. These certifications can be found as Exhibits 31.1 and 31.2 to our Form 10-K for the fiscal year ended December 31, 2007. | Financial Information MEMC maintains a home page on the Internet at www.memc.com where we publish information, including earnings releases, other news releases and significant corporate disclosures. Independent Auditors KPMG LLP 10 South Broadway, Suite 900 St. Louis, Missouri 63102 Investor Relations Stockholders, securities analysts, investment professionals and prospective investors should direct their inquiries to: MEMC Electronic Materials, Inc. Investor Relations Department 501 Pearl Drive (City of O’Fallon) St. Peters, Missouri 63376 Tel: (636) 474-5000 Fax: (636) 474-5158 Email: invest@memc.com |