Metabolix Enters into Agreement with Kenmare to Expand Business in Compostable Film Markets in Europe

  Metabolix Enters into Agreement with Kenmare to Expand Business in
  Compostable Film Markets in Europe

     EU-Based Packaging Supplier Will Promote Mvera B5008, Complementing
              Metabolix’s Business Development Efforts in Europe

Business Wire

CAMBRIDGE, Mass. -- December 12, 2012

Metabolix, Inc. (NASDAQ: MBLX), an innovation-driven bioscience company
focused on delivering sustainable solutions for plastics, chemicals and
energy, today announced that it has entered into an agreement with Kenmare
Srl., a packaging solutions supplier based in Milan, Italy and Lugano,
Switzerland. Under the agreement, Kenmare will promote to its customers
Metabolix’s Mvera B5008, a certified-compostable film grade, starting in 2013.

“With growing concern about single-use bags and the emergence of plastic bag
regulations requiring either reusable or certified compostable alternatives,
it has become increasingly important for bag suppliers and retail stores to
offer more sustainable product options,” said Francesco Tognato, director, at
Kenmare. “We have been pleased with Metabolix products and are honored to
offer Mvera B5008 to our customer base as an excellent alternative raw
material for compostable bag production. We look forward to expanding our
business with Metabolix next year as they ramp up their production in Europe.”

Mvera B5008 is designed for consumer compost bags, can liners for commercial
compostable food waste, as well as shopping and retail bags that can be reused
as consumer compost bags. It is certified by Vinçotte to meet the EN 13432
standard for compostable plastics, and exhibits many of the same performance
qualities of the current non-compostable plastic bags– such as excellent
puncture and tear resistance, good barrier properties, printability and
compatibility with other compostable polymers.

“We’re delighted to work with Kenmare to help build awareness and generate
additional sales for Mvera B5008 among Kenmare’s customers that are at the
forefront in providing innovative compostable packaging solutions,” said Dr.
Stan Haftka, director of business development, Europe at Metabolix. “Kenmare
has unparalleled expertise and reach in these regions, working with a number
of leading organizations on their packaging needs. This expanded relationship
reflects Metabolix’s continued growth in European markets and will help us
leverage existing Kenmare customer relationships and capabilities to broaden
our presence in European markets.”

About Kenmare

Founded in 2004 and based in Italy and Switzerland, Kenmare is an
international distribution company that partners with both retailers and
distributors to source their packaging needs with environmental innovation.
Kenmare holds strong partnerships with European manufacturers, as well as
Asian manufacturers, guaranteeing high standards in quality and service, and a
competitive and wide range of products. Thanks to the cooperation with all of
its customers and suppliers, and with the commitment and focus of its team,
Kenmare has experienced continuous growth over the past few years, for both
the Italian and Swiss offices.

For more information, please visit

About Metabolix

Metabolix, Inc. is an innovation-driven bioscience company delivering
sustainable solutions to the plastics, chemicals and energy industries.
Metabolix is developing and commercializing Mirel^TM and Mvera,^TM a family of
high-performance bioplastics which are biobased and biodegradable alternatives
to many petroleum-based plastics. Metabolix’s biobased chemicals platform
utilizes its novel “FAST” recovery process to enable the production of
cost-effective, “drop-in” replacements for petroleum-based industrial
chemicals. Metabolix is also developing a platform for co-producing plastics,
chemicals and energy from crops. Metabolix has established an industry-leading
intellectual property portfolio that, together with its knowledge of advanced
industrial practice, provides a foundation for industry collaborations.

For more information, please visit (MBLX-G)

Safe Harbor for Forward-Looking Statements

This press release contains forward-looking statements which are made pursuant
to the safe harbor provisions of Section 27A of the Securities Act of 1933, as
amended, and Section 21E of the Securities Exchange Act of 1934, as amended.
The forward-looking statements in this release do not constitute guarantees of
future performance. Investors are cautioned that statements in this press
release which are not strictly historical statements, including, without
limitation, statements regarding expectations for Metabolix sales, marketing
and production, constitute forward-looking statements. Such forward-looking
statements are subject to a number of risks and uncertainties that could cause
actual results to differ materially from those anticipated and are detailed in
Metabolix's filings with the Securities and Exchange Commission. Metabolix
assumes no obligation to update any forward-looking information contained in
this press release or with respect to the announcements described herein.


Media and General Inquiries:
Lynne H. Brum, 617-682-4693
Schwartz MSL Boston
Keith Giannini or Kirsten Swenson, 781-684-0770
James Palczynski, 203-682-8229
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