Sapphire Corporation Limited announced the appointment of Zhai Guiwu as Independent and Non-Executive Director of the company, effective from December 18, 2017. 2010 - to Present Oh Eng Bin was Senior Partner of Dentons Rodyk & Davidson LLP (Formerly Known as Rodyk & Davidson Llp). From 2005-2008 Zhai Guiwu was Vice President of China Shenhua Shendong Coal Branch Company. From 2011-2014 Vice President of China Shenhua Energy Co. Ltd.