Rubicon Technology Will Report Fourth Quarter Results on February 20, 2013

  Rubicon Technology Will Report Fourth Quarter Results on February 20, 2013

Business Wire

BENSENVILLE, Ill. -- January 29, 2013

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, 2012
on Wednesday, February 20, 2013 after the market closes.

In conjunction with the release, management will host a conference call at
5:00 p.m. EST (4:00 p.m. CST) on February 20 to review the financial results.
To participate in the conference call, please dial (866) 543-6405 or (617)
213-8897 (international) at least 10 minutes prior to the start of the call.
Callers will need to reference conference ID 28672842#.

The conference call will also be webcast live over the Internet and can be
accessed at the company's website:

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. EST (10:59 p.m. CST) February 27, 2013 and can be accessed by dialing
(888) 286-8010 or (617) 801-6888 (international). Callers should reference
conference ID 55557446#. The webcast will be archived on the Company's

About Rubicon Technology

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 products to support next-generation LED, RFIC and optical
window applications.

Further information is available at


Rubicon Technology, Inc.
Dee Johnson
Vice President, Investor Relations
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