November 1, 2012--Metabolix, Inc. (NASDAQ: MBLX), an innovation-driven bioscience company delivering sustainable solutions to the plastics, chemicals and energy industries, today reported financial results for the three months ended September 30, 2012. “We made progress in each of our business areas during the quarter. We entered the demonstration phase with Antibióticos, our manufacturing partner for biopolymers, and have begun the engineering and ordering of the equipment needed to begin production in Spain. We expect Antibióticos to begin delivering demonstration quantities of biopolymer in early 2013 and commercial quantities later in the year. We also increased our product shipments during the third quarter utilizing our inventory position to expand the roster of customers placing new and repeat orders,” commented Richard P. Eno, President and Chief Executive Officer of Metabolix. “In our biobased chemicals platform, we have accelerated discussions with potential partners for our C4 and C3 chemicals programs. In our crops platform, which we believe has excellent long term potential, we have continued to execute on our $6 million DOE grant and are pursuing a number of opportunities for additional funding.” THIRD QUARTER AND NINE MONTHS 2012 FINANCIAL OVERVIEW Metabolix manages its finances with an emphasis on cash flow. The Company has maintained this focus and ended the third quarter with $53.6 million in unrestricted cash and investments. The Company's net cash used for operating activities during the third quarter of 2012 was $6.3 million, which decreased from the net cash used of $7.8 million for the comparable quarter in 2011. Metabolix continues to have no debt. Metabolix currently expects cash usage from operations to be approximately $30 million for 2012, excluding start-up costs relating to the biopolymer manufacturing at Antibióticos. The Company currently expects to end 2012 with a cash and investments balance of approximately $44 million, after $3 million of anticipated start-up costs and facility modifications related to the demonstration phase of Antibióticos manufacturing. Nearly all costs incurred in the demonstration phase will be directly applicable to the commercial manufacturing phase.