GT Solar to Participate in Investor Event

MERRIMACK, N.H.--(Business Wire)--
GT Solar International, Inc. (NASDAQ: SOLR), a global provider of specialized
production equipment, process technology and turnkey manufacturing services for
the solar power industry, today announced that it will participate in the
following investor event:

Thomas Weisel Partners Alternative Energy & Natural Resources Conference

Date: Tuesday, November 10, 2009

Presentation Time: 8:35 am ET

A live and archived webcast of the presentation will be available on the Events
and Presentation page in the Investor Relations section of the GT Solar Web site
at http://investor.gtsolar.com/.

About GT Solar International, Inc.

GT Solar International, Inc., based in Merrimack, NH, USA, is a leading global
provider of specialized production equipment, process technology and turnkey
manufacturing services for the solar power industry. The company's products and
services allow its customers to optimize their manufacturing environments and
lower their cost of ownership, accelerating the drive towards grid parity. For
additional information about GT Solar, please visit www.gtsolar.com.

Media
GT Solar
Susan Vaillancourt, 603-589-3782
susan.vaillancourt@gtsolar.com
or
Investors/Analysts
Bob Blair, 603-681-3869
bob.blair@gtsolar.com

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