Third Quarter 2012 GuidanceCommenting on the outlook for the third quarter of 2012, William Weissman, Rubicon’s Chief Financial Officer, said, “We expect revenue in the third quarter of between $18 and $21 million. Pricing for two-through-four inch cores will likely remain low for another quarter or two as sapphire inventory levels continue to get worked down at a slower pace than originally expected. Gross margin should continue to improve in the third quarter but will not likely cover all of our operating expenses. We expect a loss per share between $(0.02) and $(0.05) in the third quarter.” Conference Call Details Rubicon will host a conference call at 5:00 p.m. Eastern time on August 2, 2012 to review the second-quarter 2012 results and the third quarter 2012 outlook. The conference call will be available to the public through a live audio web broadcast via the Internet. Log on through the Investor Relations section of Rubicon's website at http://www.rubicon-es2.com/index.html. An audio replay of the call will be available approximately two hours after the conclusion of the call. The audio replay will remain available until 11:59 p.m. Eastern time on August 9, 2012, and can be accessed by dialing (888) 286-8010 or (617) 801-6888 (international). Callers should reference conference ID 99190607. The webcast will be archived on the Company's website. About Rubicon Technology, Inc. Rubicon Technology, Inc. is an advanced electronic materials provider that is engaged in developing, manufacturing and selling monocrystalline sapphire and other crystalline products for light-emitting diodes (LEDs), radio frequency integrated circuits (RFICs), blue laser diodes, optoelectronics and other optical applications. The Company applies its proprietary crystal growth technology to produce very high-quality sapphire in a form that allows for volume production of various sizes and orientations of substrates and windows. Rubicon is a vertically-integrated manufacturer with capabilities in crystal growth, high precision core drilling, wafer slicing, surface lapping, large-diameter polishing and wafer cleaning processes, which the Company employs to convert the bulk crystal into products with the quality and precision specified by its customers. The Company is the world leader in larger diameter sapphire products to support next-generation LED, RFIC and optical window applications.