[HANWHA SOLARONE ANNOUNCES NEW SENIOR DIRECTOR IN NORTH AMERICA Will support the Company’s commitment to growth in the U.S. market “I am very excited to have Ray join our team during this important growth phase in the U.S. market,” said Bruce Ludemann, VP and General Manager for North America. “Ray’s twenty years of experience building distribution networks will prove extremely] [99.1 Press Release Dated March 1, 2011. HANWHA SOLARONE CO., LTD]

[HANWHA SOLARONE EXTENDS RELATIONSHIP WITH CNBM INTERNATIONAL WITH NEW 50MW FRAMEWORK SUPPLY AGREEMENT SHANGHAI, China, February 28, 2011 – Hanwha SolarOne Co., Ltd. ("Hanwha SolarOne" or the "Company") (NASDAQ: HSOL), a vertically integrated manufacturer of silicon ingots, wafers and photovoltaic (“PV”) cells and modules in China, today announced that it has extended its relationship with CNBM International Corporation (“CNBM International”)] [99.1 Press Release Dated February 28, 2011. HANWHA SOLARONE CO., LTD]

[HANWHA SOLARONE ANNOUNCES PRELIMINARY FOURTH QUARTER 2010 HIGHLIGHTS OF UNAUDITED FINANCIAL RESULTS SHANGHAI, China, February 24, 2011 – Hanwha SolarOne Co., Ltd. ("Hanwha SolarOne" or the "Company") (NASDAQ: HSOL), a vertically integrated manufacturer of silicon ingots, wafers and photovoltaic (“PV”) cells and modules in China, today announced certain preliminary highlights of the Company’s fourth quarter ended December 31, 2010. Fourth] [99.1 Press Release Dated February 24, 2011. HANWHA SOLARONE CO., LTD]