Harris & Harris Group Notes Solazyme and Propel Fuels Collaboration

Harris & Harris Group Notes Solazyme and Propel Fuels Collaboration

NEW YORK, Nov. 14, 2012 (GLOBE NEWSWIRE) -- Harris & Harris Group, Inc.
(Nasdaq:TINY), an early-stage, active investor in transformative
nanotechnology companies, notes that Solazyme, Inc., and Propel Fuels
announced the arrival of algae-derived fuel to retail pumps. The two renewable
fuel brands will offer Solazyme's algae-based Soladiesel®BD to drivers through
Propel's Bay Area network of retail renewable fuel locations. The month-long
pilot program provides the opportunity to test consumer response to this
advanced renewable fuel.

Solazyme's algae-based SoladieselBD meets or exceeds ASTM quality
specifications and has shown performance enhancements over standard diesel
fuel including cold temperature operating performance. SoladieselBD is
compatible with existing diesel engines, and the fuel's performance will be
guaranteed by Propel. The fuel will be sold at the same price as conventional
diesel fuels and will be available exclusively at Propel's Clean Fuel Points
in Redwood City, San Jose, Berkeley and Oakland, CA. Solazyme's press release
can be viewed at http://solazyme.com/media/2012-11-13.

Harris & Harris Group is an investor in publicly traded Solazyme, Inc.

Detailed information about Harris & Harris Group and its holdings can be found
on its website at www.HHVC.com.

This press release may contain statements of a forward-looking nature relating
to future events. These forward-looking statements are subject to the inherent
uncertainties in predicting future results and conditions. These statements
reflect the Company's current beliefs, and a number of important factors could
cause actual results to differ materially from those expressed in this press
release. Please see the Company's Annual Report on Form 10-K for the fiscal
year ended December 31, 2011, as well as subsequent filings, filed with the
Securities and Exchange Commission for a more detailed discussion of the risks
and uncertainties associated with the Company's business, including, but not
limited to, the risks and uncertainties associated with venture capital
investing and other significant factors that could affect the Company's actual
results. Except as otherwise required by Federal securities laws, the Company
undertakes no obligation to update or revise these forward-looking statements
to reflect new events or uncertainties. The references to the websites
www.HHVC.com and www.solazyme.com have been provided as a convenience, and the
information contained on such websites is not incorporated by reference into
this press release.Harris & Harris Group is not responsible for the contents
of third party websites.

CONTACT: DOUGLAS W. JAMISON
         TEL. NO. (212) 582-0900
 
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