MERRIMACK, N.H.--(BUSINESS WIRE)--GT Solar International, Inc. (NASDAQ: SOLR), a global provider of polysilicon production technology, and sapphire and silicon crystalline growth systems and materials for the solar, LED and other specialty markets, today announced that it has received a $47.3 million order from South Korea-based polysilicon producer OCI Company, Ltd. for its newest SDR™400 CVD reactors. This is OCI’s third order for GT Solar’s SDR400 CVD reactors. The new systems will be installed as the first phase of OCI’s new polysilicon capacity expansion plan, which OCI announced on December 8, 2010. The order will be included in GT Solar’s backlog for its current Q3 FY11, which ends on January 1, 2011.

“We are pleased that OCI has selected GT Solar’s SDR400 reactors for use in their newly announced polysilicon production capacity expansion,” said Tom Gutierrez, GT Solar’s president and CEO. “OCI is a long time valued customer and we are proud that our polysilicon production technology continues to provide sustained value to meet their growing manufacturing requirements.”

The SDR400 CVD reactor has proven capability of producing over 400 metric tons annually (MTA) of polysilicon and continues GT Solar’s leadership position for developing the most energy efficient reactors in the industry. The SDR400 reduces power consumption by an additional 20 percent per kilogram of polysilicon produced compared to GT Solar’s highly efficient SDR300.

About GT Solar International, Inc.

GT Solar International, Inc. is a global provider of polysilicon production technology, and sapphire and silicon crystalline growth systems and materials for the solar, LED and other specialty markets. The company's products and services allow its customers to optimize their manufacturing environments and lower their cost of ownership. For additional information about GT Solar, please visit www.gtsolar.com.

Forward-Looking Statements

Some of the statements in this press release are forward-looking in nature, including statements regarding expected revenue from customer contracts. These statements are based on management’s current expectations or beliefs. These forward-looking statements are not a guarantee of performance and are subject to a number of uncertainties and other factors, many of which are outside the Company’s control, which could cause actual events to differ materially from those expressed or implied by the statements. Factors that may cause actual events to differ materially from those expressed or implied by our forward-looking statements include the possibility that the Company is unable to recognize revenue on customer contracts, that technological changes could render existing products or technologies obsolete, the Company may be unable to protect its intellectual property rights, competition from other manufacturers may increase, exchange rate fluctuations and conditions in the credit markets and economy may reduce demand for the Company’s products and various other risks as outlined in GT Solar International, Inc.’s filings with the Securities and Exchange Commission, including the statements under the heading “Risk Factors” in the Company’s annual report on Form 10-K for the fiscal 2010 filed on June 4, 2010 and quarterly report on Form 10-Q for the second fiscal quarter filed on November 9, 2010. GT Solar International, Inc. is under no obligation to, and expressly disclaims any such obligation to, update or alter its forward-looking statements, whether as a result of new information, future events, or otherwise.

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