China Polymetallic Mining Limited announced that Mr. Lei Dejun has been appointed as an executive Director with effect from 12 June 2017 and each of Mr. Yin Bo and Mr. Chan Suk Ching has been appointed as a non-executive Director with effect from 12 June 2017. Mr. Lei Dejun, aged 39, has been the Chief Operating Officer of the Group since April 2012 and was an executive Director from 18 September 2015 to 9 May 2016. Mr. Lei is responsible for the overall production and development of polymetallic projects and the monitoring of the development of Dakuangshan project and he participated in parts of management of the Shizishan Mine project since September 2013. Mr. Yin Bo, aged 55, is the Chairman, Chief Executive Officer and executive director of CITIC Dameng Holdings Limited and director of its several subsidiaries. Mr. Chan Suk Ching, aged 40, is a director of GPS Joint Venture Company Limited.