Rubicon Technology to Present at Investor Conference on March 9, 2015

Rubicon Technology, Inc. (NASDAQ:RBCN), a leading provider of sapphire substrates and products to the LED, semiconductor, and optical markets, will participate in the 27th Annual Roth Conference for investors at the Ritz Carlton, Laguna Niguel, in Dana Point, CA, on Monday, March 9, 2015. Mardel Graffy, Chief Financial Officer, will make a presentation to investors at 5:00 p.m. PT (8:00 p.m.ET). An audio-only webcast of the presentation will be available on Rubicon’s website at http://ir.rubicontechnology.com, and the webcast will be archived on Rubicon’s website for an indefinite period.

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. Rubicon is ISO 9001 certified and ITAR registered.

Further information is available at www.rubicontechnology.com.