BTU International Receives $5.5 Million in Solar Orders

BTU International (Nasdaq: BTUI), a leading supplier of advanced thermal processing equipment and processes to the alternative energy and electronics manufacturing markets, today announced it received approximately $5.5 million in orders from Asia/Pacific customers for BTU solar processing equipment. The majority of the equipment will be used for contact formation in a new high efficiency process for the manufacture of silicon solar cells. The balance of the ordered equipment consists of current-generation metallization systems. Revenue recognition for these orders is expected during the first half of 2010.

“We are very pleased with these wins for our solar business,” said Paul van der Wansem, chairman and CEO of BTU International. “Over the past two years BTU has made significant investments in the development of new solar products, and we are encouraged by these orders.”

BTU offers solar processing equipment for both silicon and thin film photovoltaics. For silicon photovoltaic applications BTU’s systems are used for metallization and in-line diffusion processes. In thin film photovoltaics, BTU’s equipment is used for both the CIGS and the CdTe processes.

About BTU International

BTU International is a market-leading, global supplier of advanced thermal processing equipment and processes to the alternative energy and electronics manufacturing markets. BTU equipment is used in solar cell, nuclear fuel and fuel cell manufacturing as well as in the production of printed circuit board assemblies and semiconductor packaging. BTU has operations in North Billerica, Massachusetts and Shanghai, China with direct sales and service in the U.S.A., Asia and Europe. Information about BTU International is available at www.btu.com.

“Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995

This news release contains expressed or implied forward-looking statements regarding, among other things, the company's expectation of the installation of solar products and growth in the alternative energy industry. Such statements are neither promises nor guarantees but rather are subject to risks and uncertainties, which could cause actual results to differ materially from those described in the forward-looking statements. Such statements are made pursuant to the “safe harbor” provisions established by the federal securities laws, and are based on the assumptions and expectations of the company’s management at the time such statements are made. Important factors that could cause actual results to differ include the timely availability and acceptance of new products, general market conditions governing supply and demand, the impact of competitive products and pricing and other risks detailed in the company’s filings with the Securities and Exchange Commission, including but not limited to the company’s Quarterly Report on Form 10-Q for the quarter ended September 27, 2009, and the company's Annual Report on Form 10-K for the year ended December 31, 2008. Actual results may vary materially. Accordingly, you should not place undue reliance on any forward-looking statements. All information set forth in this press release is as of December 8, 2009, and, unless otherwise required by law, the company disclaims any obligation to revise or update this information in order to reflect future events or developments.

Company Contact:

BTU International, Inc.

Jan-Paul van Maaren, 978-667-4111

Vice President Marketing

or

Agency Contact:

For BTU International, Inc.

Bill Monigle, 941-497-1622

IR Counsel