Hanwha SolarOne Co., Ltd., a top-10 global photovoltaic manufacturer of high-quality, cost-competitive solar modules, announced on April 15th its Chairman and CEO Ki-Joon HONG has retired from the Company. Chairman HONG was appointed a Director of Hanwha SolarOne on October 8, 2010 and subsequently became Chief Executive Officer on June 27, 2011. A replacement is expected to be announced by the end of April.