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Investor FAQ

1.What is Suntech? What does it do?
2.What are photovoltaic cells and modules?
3.Who uses your products? Where are your customers located?
4.Where does Suntech rank in global PV cell production?
5.What year and where was Suntech incorporated?
6.Where is Suntech based?
7.How many employees does Suntech have?
8.Where is Suntech traded?
9.When was Suntech’s initial public offering? What was the issue price?
10.Who were Suntech’s underwriters?
11.Who is Suntech’s independent auditor?
12.When does Suntech’s fiscal year end?
1.What is Suntech? What does it do?
 Suntech Power Holdings Co., Ltd. (NYSE: STP) is the world's leading solar energy company as measured by production output of crystalline silicon solar modules. Suntech designs, develops, manufactures, and markets premium quality, high-output, cost-effective and environmentally friendly solar products for electric power applications in the residential, commercial, industrial, and public utility sectors. Suntech offers an extensive range of customer-centric innovations, including Suntech's patent-pending Pluto technology for crystalline silicon solar cells, which improves power output by up to 12% compared to conventional production methods, the Reliathon(TM), the industry's first fully integrated utility-scale solar platform, and a broad range of building-integrated solar products.

Suntech designs and delivers commercial and utility scale solar power systems in China and the United States. With regional headquarters in China, Switzerland and San Francisco and sales offices worldwide, Suntech is passionate about improving the environment we live in and dedicated to developing advanced solar solutions that enable sustainable development.

2.What are photovoltaic cells and modules?
 Photovoltaic, or PV, cells and modules are devices that convert sunlight into electricity through a process known as the photovoltaic effect.

3.Who uses your products? Where are your customers located?
 Our products are used to provide reliable and environmentally friendly electric power for residential, commercial, industrial and public utility applications in various markets worldwide. During 2010, we shipped over 1.57 GW of PV equipment to customers in over 80 countries in various key markets worldwide, including Germany, Italy, France, the United States, China, the Middle East, Australia and Japan.

4.Where does Suntech rank in global PV cell production?
 Since we commenced business operations in May 2002, we have grown rapidly to become the largest manufacturer of crystalline PV modules. At the end of 3Q 2011, Suntech had 2.4 GW of cell and module capacity, which includes 600 MW of cell capacity operated by our joint venture.

5.What year and where was Suntech incorporated?
 Our predecessor company, Wuxi Suntech Power Co., Ltd., or Suntech China, was established in Wuxi, China in January 2001 and commenced business operations in May 2002. Suntech Power Holdings Co., Ltd., or Suntech, was incorporated in the Cayman Islands on August 8, 2005 in preparation for our initial public offering.

6.Where is Suntech based?
 Our headquarters are in Wuxi, China.

Our contact details are:
9 Xinhua Road, New District,
Wuxi, Jiangsu Province 214028,
People's Republic of China
Tel: +86 510 8531 8888
Website: http://www.suntech-power.com
In addition, Suntech has offices in 13 countries, including regional headquarters in San Francisco, California and Schaffhausen, Switzerland.

7.How many employees does Suntech have?
 We had 20,231 employees as of December 31, 2010.

8.Where is Suntech traded?
 Suntech is traded on the New York Stock Exchange under the symbol STP.

9.When was Suntech’s initial public offering? What was the issue price?
 We listed on December 14, 2005 at $15 per ADS. Each ADS represents one of our ordinary share.

10.Who were Suntech’s underwriters?
 Credit Suisse First Boston LLC and Morgan Stanley & Co. International Limited.

11.Who is Suntech’s independent auditor?
 Deloitte Touche Tohmatsu CPA Ltd.

12.When does Suntech’s fiscal year end?
 Suntech’s fiscal year ends on December 31.