EXTENSION AND AMENDMENT TO QUARTZ SAND PRODUCTS PURCHASE AGREEMENT …
This Extension and Amendment to Quartz Sand Products Purchase Agreement, effective as of December 31, 2010 (the "Extension and Amendment"), by and between Unimin Corporation ("Seller") and Momentive Performance Materials Quartz, Inc. (formerly known as GE Quartz, Inc.) ("Buyer"). Defined terms used herein and not otherwise defined ...