Hanwha SolarOne to Announce Fourth Quarter and Full Year 2010 Financial Results on March 17, 2011

SHANGHAI, Jan. 31, 2011 /PRNewswire/ -- Hanwha SolarOne Co., Ltd. (f/k/a Solarfun Power Holdings Co., Ltd., or "Hanwha SolarOne" or the "Company") , a vertically integrated manufacturer of silicon ingots, wafers and photovoltaic ("PV") cells and modules in China, today announced that it will release its unaudited financial results for the fourth quarter and full year of 2010 before the market opens on March 17, 2011. Management will host a conference call to discuss the results at 8:00 AM Eastern Daylight Time (8:00 PM Shanghai time) on the same day.

Conference Call

Dr. Peter Xie, President, Mr. Gareth Kung, Chief Financial Officer, and Mr. Paul Combs, Vice President of Strategic Planning, will discuss the results and take questions following the prepared remarks.

The dial-in details for the live conference call are as follows: - U.S. Toll Free Number: [phone] - International dial-in number: [phone] -China Toll Free Number (North): [phone] -China Toll Free Number (South): [phone] -China Toll Free Number (South): [phone] Passcode: HSOL

A live webcast of the conference call will be available on the investor relations section of the Company's website at: http://www.hanwha-solarone.com/. A replay of the webcast will be available for one month.

A telephone replay of the call will be available for seven days after the conclusion of the conference call. The dial-in details for the replay are as follows:

- U.S. Toll Free Number: [phone] - International dial-in number: [phone] Passcode: 64010940 About Hanwha SolarOne

Hanwha SolarOne Co., Ltd., f/k/a Solarfun Power Holdings Co., Ltd. is a vertically integrated manufacturer of silicon ingots, wafers, PV cells and modules. Hanwha SolarOne offers high-quality, reliable products and services at competitive prices. Partnering with third party distributors, OEM manufacturers, and system integrators, Hanwha SolarOne serves the utility, commercial/government, and residential markets. The company maintains a strong worldwide presence with employees located throughout Europe, North America, and Asia and embraces environmental responsibility and sustainability with an active role in the voluntary photovoltaic recycling program. The Company benefits from its strategic partnership with its largest shareholder Hanwha Group who is active in solar project development and financing and plans to produce polysilicon in the future. For more information visit: http://www.hanwha-solarone.com/.

SOLF-G For further information, please contact: Investor Contact: Paul Combs V.P. Strategic Planning Building 1, 18th Floor 1199 Minsheng Road, Shanghai, PRC 200135 P. R. China Tel: [phone] / Mobile: [phone] E-mail: [e-mail] Christensen Kathy Li Tel: [phone] E-mail: [e-mail] Tip Fleming Tel: + 852 9212 0684 E-mail: [e-mail]

Hanwha SolarOne Co., Ltd.

CONTACT: Investors, Paul Combs, V.P. Strategic Planning of Hanwha
SolarOne Co., Ltd., 86-21-3852 1533, Mobile, 86 138 1612 2768,
[e-mail]; or Kathy Li, [phone],
[e-mail], or Tip Fleming, + 852 9212 0684,
[e-mail], both of Christensen, for Hanwha SolarOne Co.,
Ltd.

Web Site: http://www.hanwha-solarone.com/