Mascoma Corporation Welcomes NYSERDA President & CEO Paul D. Tonko

NYSERDA President and CEO joins Mascoma CEO Bruce Jamerson for
groundbreaking ceremony at company's $30 million cellulosic ethanol
demonstration facility in Rome, New York
ROME, N.Y.--(Business Wire)--Bruce A. Jamerson, Chief Executive Officer of Mascoma Corporation,
a leader in advanced low-carbon biofuels, today welcomed New York
State Energy Research and Development Authority President and CEO Paul
D. Tonko (representing Governor Eliot Spitzer), Congressman Michael
Arcuri, New York State Senator Joseph Griffo, and Mayor James Brown at
a groundbreaking ceremony for the company's $30 million cellulosic
ethanol demonstration facility in Rome, New York.

The project is the result of a $14.8 million award from the New
York State Department of Agriculture and Markets and the New York
State Energy Research and Development Authority (NYSERDA) to build and
operate a biomass-to-ethanol demonstration plant. The plant will focus
on demonstrating "cellulose to ethanol" technology and industrial
processes. The facility is expected to operate using a number of New
York State agricultural and forest products as biomass feedstock,
including wood chips, switchgrass, corn stover and paper sludge.

Paul D. Tonko, President and CEO of NYSERDA, said: "NYSERDA is
pleased to have played an important role in bringing Mascoma to New
York. The work that will take place at this demonstration facility
will continue to make New York a leader in clean-energy and
alternative-energy research and production. We look forward to working
with Mascoma as the company takes the important steps towards
commercialization."

"The important work that will be done at this facility may hold
the key to solving our nation's energy and environmental issues and we
welcome their investment in Upstate New York's innovation economy. The
development and commercialization of cellulosic ethanol is a growth
industry for the state of New York," said Congressman Michael Arcuri.
"These are the type of key projects that will continue to drive the
revival of the Upstate economy as well as make use of the region's
great labor pool and base of intellectual capital."

Senator Joseph Griffo said: "This project is a great example of
what private enterprise and government can do together, working toward
a common goal of potentially solving the nation's energy problem while
creating jobs through economic development. With assistance from New
York, Mascoma has the potential to develop new technologies to produce
cellulosic-based ethanol which will help to make our lives better and
contribute to economic growth of our region."

"Cellulosic ethanol will become a commercial reality and the work
done at this new facility will dramatically expedite the process,"
said Mascoma CEO Bruce A. Jamerson. "We are excited about the support
from New York, and commend New York's leadership in advancing the
cellulosic ethanol market. We believe that this plant will demonstrate
and improve the technologies we will move into production."

About Mascoma Corporation

Mascoma Corporation is a leader in advanced low-carbon biofuels
based in Cambridge, Massachusetts. It produces biofuels from
lignocellulosic biomass using proprietary microorganisms and enzymes
developed in its Lebanon, New Hampshire laboratories and with research
partners throughout the world. Mascoma's production processes have a
substantially lower carbon footprint impact on the environment than
those of other liquid transportation fuels. Mascoma is developing
demonstration and commercial scale production facilities at several
locations. For more information, visit http://www.mascoma.com.

Makovsky + Company
Priscilla Li, 212-508-9659
pli@makovsky.com

Copyright Business Wire 2007