Gevo Temporarily Dismisses GIFT(R) Lawsuit Because Butamax Does Not Have a Commercial Biobutanol Plant

Gevo Temporarily Dismisses GIFT(R) Lawsuit Because Butamax Does Not Have a
Commercial Biobutanol Plant

ENGLEWOOD, Colo., May 10, 2013 (GLOBE NEWSWIRE) -- Gevo, Inc. (Nasdaq:GEVO)
today announced that it has agreed to temporarily dismiss its lawsuit against
Butamax Advanced Biofuels, LLC (Butamax) and E. I. du Pont de Nemours and
Company (DuPont) for infringing one of Gevo's three GIFT® patents, US Patent
No. 8,101,808 ( '808 Patent). Gevo maintains all of its other lawsuits against
Butamax and DuPont for infringing Gevo's biocatalyst technology.

"When we filed this lawsuit, we expected Butamax to have a commercial
biobutanol plant by now.We decided to dismiss the '808 lawsuit, for now,
because Butamax doesn't have a commercial plant that infringes the '808 patent
and according to DuPont, they will not have a commercial plant by the time of
the trial," said Brett Lund, executive vice president and general counsel of

At DuPont's May 2, 2013 Analyst Day, a DuPont spokesperson said, "We would
expect to start the first conversion in 2015.""Butamax had stated plans to
begin commercializing their biobutanol technology in 2010, and now this date
has slipped to at least 2015," said Lund."Accordingly, it makes sense for us
to hold off on this litigation for now and, in doing so, we will save
significantly in legal costs," continued Lund."In addition to the '808
patent, we have two additional GIFT® patents that we have not yet asserted
against Butamax and we are free to assert these at any time in the
future.Additionally, Gevo is maintaining all of its other lawsuits against
Butamax and DuPont for infringing our biocatalyst patents including our trial
in August 2013 for infringing our '375 and '376 Patents."

About Gevo

Gevo is a leading renewable chemicals and next-generation biofuels company.
Gevo's patent-protected, capital-light business model converts existing
ethanol plants into biorefineries to make isobutanol. This versatile chemical
can be directly integrated into existing chemical and fuel products to deliver
environmental and economic benefits. Gevo has executed initial
commercial-scale production runs at its isobutanol facility in Luverne, Minn.
and has a marquee list of future partners including Coca-Cola, Sasol, and
LANXESS, among others. Gevo is committed to a sustainable biobased economy
that meets society's needs for plentiful food and clean air and water. For
more information, visit

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Certain statements in this press release may constitute "forward-looking
statements" within the meaning of the Private Securities Litigation Reform Act
of 1995. These forward-looking statements include statements that are not
purely statements of historical fact, and can sometimes be identified by our
use of terms such as "intend," "expect," "plan," "estimate," "future,"
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of Gevo and are subject to significant risks and uncertainty. Investors are
cautioned not to place undue reliance on any such forward-looking statements.
All such forward-looking statements speak only as of the date they are made,
and the company undertakes no obligation to update or revise these statements,
whether as a result of new information, future events or otherwise. Although
the company believes that the expectations reflected in these forward-looking
statements are reasonable, these statements involve many risks and
uncertainties that may cause actual results to differ materially from what may
be expressed or implied in these forward-looking statements. For a further
discussion of risks and uncertainties that could cause actual results to
differ from those expressed in these forward-looking statements, as well as
risks relating to the business of Gevo in general, see the risk disclosures in
the Annual Report on Form 10-K of Gevo for the year ended December 31, 2012,
as amended, and in subsequent reports on Form 8-K and other filings made with
the SEC by Gevo.

CONTACT: Media Contact:
         Steve Halsey
         Gibbs & Soell for Gevo
         T: (212) 697-2600
         Investor Contact:
         Chelsea DeLong
         PR & Marketing Coordinator
         T: (303) 858-8358

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