Rubicon Technology Will Report Results of Fourth Quarter Operations on February 12, 2015

Rubicon Technology, Inc. (Nasdaq:RBCN), a leading provider of sapphire substrates and products to the LED, semiconductor, and optical industries, will report financial results for the fourth quarter ended December 31, 2014 on Thursday, February 12, 2015, after the market closes.

In conjunction with the earnings release, management will host a conference call at 5:00 p.m. EST (4:00 p.m. CST) on February 12 to review the financial results. To participate in the conference call, please dial (888) 338-8776 toll-free, or (412) 902-4185 (international), at least 10 minutes prior to the start of the call.

The conference call will also be webcast live over the Internet and can be accessed at the company's investor web pages: http://ir.rubicontechnology.com/. The webcast will be archived on the site.

An audio replay of the call will be available approximately one hour after the conclusion of the call. The audio replay will remain available until 9:00 a.m. EST (8:00 a.m. CST) February 20, 2015, and can be accessed by dialing (877) 344-7529 toll-free, or (412) 317-0088 (international). Callers should reference conference replay ID 10059814#.

About Rubicon Technology

Rubicon Technology, Inc. is a vertically integrated advanced electronic materials provider specializing in monocrystalline sapphire for applications in light-emitting diodes (LEDs), optical systems and specialty electronic devices. Rubicon has an unmatched technology platform and expertise extending from the preparation of raw aluminum oxide through sapphire crystal growth and fabrication to large-diameter polished sapphire wafers and patterned sapphire substrates (PSS), enabling Rubicon to supply custom sapphire products with superior quality and precision. Further information is available at http://rubicontechnology.com.