Suntech Boosts Manufacturing in Arizona with 3rd Shift

The state-of-the-art module manufacturing facility will now run twenty-four hours per day with 107 employees. The new group of employees completed training on May 13th, after weeks working side-by-side with the facility's existing first and second production shifts. The expansion brings the facility's annualized production throughput to about 50MW, representing 15,000 high-quality solar panels per month.

"It's a testament to the dedication and professional abilities of Suntech's Goodyear employees that we are ramping up production yet again," said Mike Starr, Suntech's Arizona Production Manager. "With growing demand for our U.S.-manufactured panels, we're excited to increase our production capacity and drive growth in Arizona's solar industry."

The 117,000 square foot manufacturing facility features highly-automated manufacturing and product testing equipment and currently produces Suntech's 280W solar panels for commercial and utility-scale electricity generation. All modules produced at the facility are backed by an industry-leading 25-year power output warranty and are compliant for procurement in American Recovery and Reinvestment Act (ARRA) and Buy American Act projects.

"We're thrilled that the world's largest producer of solar panels continues to make major investments in our future right here in Goodyear," said Goodyear's Mayor, Georgia Lord. "Our city is on the forefront of Arizona's fast-growing solar economy and the global cleantech revolution."

Suntech's Goodyear, Arizona, manufacturing facility was opened in October 2010, initially with 30MW of production capacity and 40 employees. The operation has grown steadily since, taking on a second shift in January 2011, and remains on-target to employ 150 employees by the end of 2011.

"We expect to expand the facility to reach up to 120MW of annual production capacity within the next few years, particularly if Arizona's policy environment continues to nurture the local market," said Steven Chan, President of Suntech America. "We want to lead the charge to achieve energy independence in Arizona and the United States."

About Suntech

Suntech Power Holdings Co., Ltd. (NYSE: STP) produces industry-leading solar products for residential, commercial, industrial, and utility applications. With regional headquarters in China, Switzerland, and the United States, and gigawatt-scale manufacturing worldwide, Suntech has delivered more than 15,000,000 photovoltaic panels to over a thousand customers in more than 80 countries. Suntech's pioneering R&D creates customer-centric innovations that are driving solar to grid parity against fossil fuels. Suntech's mission is to provide everyone with reliable access to nature's cleanest and most abundant energy source.

For more information about Suntech's people and products, visit http://www.suntech-power.com.

Safe Harbor Statement

This press release contains forward-looking statements. These statements constitute "forward-looking" statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended, and as defined in the U.S. Private Securities Litigation Reform Act of 1995. These forward-looking statements can be identified by terminology such as "will," "expects," "anticipates," "future," "intends," "plans," "believes," "estimates" and similar statements, and includes Suntech's ability to ramp the Arizona facility to 120MW in the next few years; and employ 150 people by the end of 2011; and the ability to lead the charge to achieve energy independence in Arizona and the US. Such statements involve certain risks and uncertainties that could cause actual results to differ materially from those in the forward-looking statements. Further information regarding these and other risks is included in Suntech's filings with the U.S. Securities and Exchange Commission, including its annual report on Form 20-F. Suntech does not undertake any obligation to update any forward-looking statement as a result of new information, future events or otherwise, except as required under applicable law.