Rubicon Technology Will Report Results of Third Quarter Operations on November 9, 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 third quarter ended September 30, 2015 on Monday, November 9, 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 November 9 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 11:59 p.m. EST (10:59 p.m. CST) November 16, 2015, and can be accessed by dialing (877) 344-7529 toll-free, or (412) 317-0088 (international). Callers should reference conference replay ID 10075492#.

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.

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