Metabolix Now Shipping I6001 PHA-based Polymeric Modifier for PVC

  Metabolix Now Shipping I6001 PHA-based Polymeric Modifier for PVC

  New Polymeric Modifier Provides Significant Impact Resistance in Rigid and
                          Flexible PVC Formulations

Business Wire

CAMBRIDGE, Mass. -- December 18, 2012

Metabolix, Inc. (NASDAQ: MBLX), an innovation-driven bioscience company
focused on delivering sustainable solutions for plastics, chemicals and
energy, today announced that I6001, a biobased polymeric modifier for PVC
(polyvinyl chloride) formulations based on Metabolix PHA resin, is now
available for shipment to customers. Metabolix designed I6001 as a performance
additive to improve the mechanical and environmental performance
characteristics of PVC. With a diverse use pattern ranging from construction
materials to medical applications, PVC has an estimated market demand of
approximately 35 million metric tons per year.

Metabolix researchers recently developed a series of PHA-based polymeric
modifiers and presented data demonstrating very good miscibility with PVC and
significant improvements in the modification and processing of PVC. Based on
these findings, Metabolix developed I6001 polymeric modifier which
significantly improves impact resistance and toughness in rigid and flexible
PVC applications without compromising PVC transparency or UV stability. I6001
also may serve as a PVC processing aid due to its excellent miscibility and
shear melting with PVC. Additional benefits of I6001 include plasticization,
low modifier volatization and low extractables. I6001 is 85 percent biobased
and is now available commercially.

Metabolix is developing a series of second generation products in the modifier
space which the Company plans to launch in 2013 in conjunction with the
planned start-up of PHA biopolymer manufacturing in Spain.

“As our new polymeric modifier for PVC, I6001 contributes renewable content
while delivering an impressive set of processing advantages and performance
characteristics,” said Bob Engle, vice president, commercial development of
biopolymers at Metabolix. “We look forward to working with customers to
identify suitable applications for PVC formulations using our polymeric
modifiers. Next year, we are planning to introduce additional performance
additives with very high biocontent for PVC and other commercially important
resins to underscore our commitment to providing customers with sustainable,
high-performance products that enable them to satisfy consumer demands,
differentiate brands and meet evolving government regulations.”

Product information on I6001 including a data sheet and processing guide can
be found on www.metabolix.com.

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 a family of high-performance
biopolymers targeted to the markets for film and bag applications, performance
additives and functional biodegradation. 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. The Company 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 www.metabolix.com. (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 the ability to develop, manufacture, and
market PHA as polymeric PVC modifiers and performance additives,  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.

Contact:

Media and General Inquiries:
Metabolix, Inc.
Lynne H. Brum, 617-682-4693
LBrum@metabolix.com
or
Schwartz MSL Boston
Keith Giannini or Kirsten Swenson, 781-684-0770
metabolix@schwartzmsl.com
or
Investors:
ICR
James Palczynski, 203-682-8229
james.palczynski@icrinc.com
 
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