[Hanwha SolarOne Announces Shareholder Resolutions Adopted at Annual General Meeting SHANGHAI, China (December 21, 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 the shareholder resolutions adopted at its annual general meeting of shareholders (“AGM”) held in Shanghai,] [December 21 99.1 Press Release Dated HANWHA SOLARONE CO., LTD Ki-Joon HONG]