Amyris Secures Additional Financing and Announces Start of Biofene(R) Production at Its Paraiso Facility in Brazil

Amyris Secures Additional Financing and Announces Start of Biofene(R)
Production at Its Paraiso Facility in Brazil

EMERYVILLE, Calif., Dec. 27, 2012 (GLOBE NEWSWIRE) -- Amyris, Inc.
(Nasdaq:AMRS), a leading renewable chemicals and fuels company, today
announced it has completed a $42.25 million private placement of its common
stock. In addition, Amyris announced its purpose-built industrial fermentation
facility in Brazil has successfully begun production of Biofene, Amyris's
brand of renewable farnesene.

"We are encouraged by the continued, strong commitment from our major
investors, particularly as we start up our new industrial fermentation
facility for the production of our renewable hydrocarbons in Brazil," said
John Melo, Amyris President & CEO.

"Our own farnesene plant at Paraiso has been successfully commissioned, with
initial farnesene production underway. We anticipate sales from this facility
during the first quarter of 2013," Melo concluded.

The Company sold 14,177,849 shares of common stock in a private placement to
existing Amyris investors. The transaction included $37.25 million in cash
proceeds and the conversion by Total Gas & Power USA, SAS of $5 million from
an outstanding senior unsecured convertible promissory note. Additional
details will be provided in the Company's upcoming SEC filings.

About Amyris, Inc.

Amyris is an integrated renewable products company focused on providing
sustainable alternatives to a broad range of petroleum-sourced products.
Amyris uses its industrial synthetic biology platform to convert plant sugars
into a variety of hydrocarbon molecules—flexible building blocks that can be
used in a wide range of products. Amyris's initial portfolio of commercial
products is based on Biofene®, Amyris's brand of renewable farnesene, a
long-chain hydrocarbon. Amyris is commercializing these products both as No
Compromise® renewable ingredients in cosmetics, flavors and fragrances,
polymers, lubricants and consumer products, and also as No Compromise
renewable diesel and jet fuel. Amyris Brasil Ltda., a subsidiary of Amyris,
oversees the establishment and expansion of Amyris's production in Brazil.
More information about Amyris is available at

The Amyris, Inc. logo is available at

Forward-Looking Statements

This release contains forward-looking statements, and any statements other
than statements of historical facts could be deemed to be forward-looking
statements. These forward-looking statements include, among other things,
statements regarding future events (such as commercial sales of Biofene from a
production facility and the prospects for Amyris technology) that involve
risks and uncertainties. These statements are based on management's current
expectations and actual results and future events may differ materially due to
risks and uncertainties, including those associated with any delays or
failures in development, production or commercialization of products,
liquidity and ability to fund capital expenditures, Amyris's reliance on third
parties to achieve its goals, and other risks detailed in the "Risk Factors"
section of Amyris's quarterly report on Form 10-Q filed on November 9, 2012.
Amyris disclaims any obligation to update information contained in these
forward-looking statements whether as a result of new information, future
events, or otherwise.

Amyris, Biofene and No Compromise are trademarks or registered trademarks of
Amyris, Inc.

CONTACT: Media and Investor Relations
         Joel Velasco
         +1 (510) 597-5577

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