BTU International, Inc. (Nasdaq: BTUI), a leading supplier of advanced thermal processing equipment and processes for the alternative energy and electronics manufacturing markets, today announced the receipt of two new orders for Meridian™ in-line diffusion furnaces. The orders, valued in excess of $18 million, were received from a new and an existing customer based in Asia. In both cases, the systems will be used for capacity expansions. Including these orders, cumulative shipments of BTU in-line diffusion tools will exceed two gigawatts. “We recognize that when the solar industry is ramping at a rapid pace, it is a difficult time for customers to change their manufacturing process,” said Paul van der Wansem, chairman and CEO of BTU. “However, with strong pressure to lower cost per watt, in-line, diffusion makes a strong case by offering state of the art cell efficiencies for existing and advanced cell processing, coupled with a lower cost of ownership. “As we implement our alternative energy growth strategy, we are pleased that our products are increasingly chosen by customers who are incorporating competitive solutions that meet or exceed benchmark process results.” Shipments of these systems will commence this quarter and are scheduled for completion in the third quarter of 2011. About BTU International BTU International is a market-leading, global supplier of advanced thermal processing equipment to the alternative energy and electronics assembly markets. BTU’s equipment and expertise are used in the manufacturing of solar cells and nuclear fuel as well as the production of printed circuit board assemblies and semiconductor packaging. BTU has design and manufacturing operations in North Billerica, Massachusetts and Shanghai, China with direct sales and service worldwide. Further information about BTU International is available at www.btu.com. “Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995 Certain matters discussed in this press release may constitute forward-looking statements within the meaning of the federal securities laws, including statements about the Company’s expectation of the installation and acceptable performance of the Company’s in-line diffusion systems. Actual results and the timing of certain events could differ materially from those projected in or contemplated by the forward-looking statements due to a number of factors, including 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 SEC, including its Annual Report on Form 10-K for the year ended December 31, 2009.