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Momentive Performance Materials Inc. Announces
Third Quarter 2010 Earnings Call

ALBANY, N.Y., October 29, 2010 – Momentive Performance Materials Inc. (“Momentive Performance Materials” or the “Company”) announced today that it plans to host a conference call to discuss its Third Quarter 2010 consolidated results on Wednesday, November 3, 2010, at 10:00 a.m. Eastern Time. The Company will issue a press release announcing its financial results for the Third Quarter 2010 prior to the opening of the market on Wednesday, November 3, 2010.

Interested parties are asked to dial-in approximately 10 minutes before the call begins. Dial-in information for the conference call is below:

Live Internet access to the call and presentation materials will be available through the Investor Relations section of the Company’s website: www.momentive.com/investors. A replay of the call will be available for three weeks beginning at 1 p.m. Eastern Time on November 3, 2010. The playback can be accessed by dialing 888.286.8010 (U.S.) and 617.801.6888 (International). The passcode is 28660777. A replay also will be available through the Investor Relations section of the Company’s website.

About the Company

Momentive Performance Materials Inc. is a global leader in silicones and advanced materials, with a 70-year heritage of being first to market with performance applications for major industries that support and improve everyday life. The Company delivers science-based solutions, by linking custom technology platforms to opportunities for customers. Momentive Performance Materials Inc. is an indirect whollyowned subsidiary of Hexion Holdings LLC. Additional information is available at www.momentive.com.

About the new Momentive

Hexion Holdings LLC is the ultimate parent company of Momentive Performance Materials Inc. and Hexion Inc. (collectively, the “new Momentive”). The new Momentive is a global leader in specialty chemicals and materials, with a broad range of advanced specialty products that help industrial and consumer companies support and improve everyday life. The company uses its technology portfolio to deliver tailored solutions to meet the diverse needs of its customers around the world. The new Momentive was formed in October 2010 through the combination of entities that indirectly owned Momentive Performance Materials Inc. and Hexion Specialty Chemicals Inc. The capital structures and legal entity structures of both Momentive Performance Materials Inc. and Hexion Inc. (formerly known as Hexion Specialty Chemicals, Inc.), and their respective subsidiaries and direct parent companies, remain separate. Momentive Performance Materials Inc. and Hexion Inc. file separate financial and other reports with the Securities and Exchange Commission. The new Momentive is controlled by investment funds affiliated with Apollo Global Management, LLC. Additional information about the new Momentive and its products is available at www.momentive.com and at www.hexion.com.

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Contact
Peter Cholakis
(914) 784-4871
peter.cholakis@momentive.com