Peter Johnston has been a director since August 1, 2012. He served as Tronox’ s interim CEO from May 15, 2017, to November 30, 2017. He was appointed Global Head of Nickel Assets for Glencore in May 2013. He retired from Glencore in December 2015. Prior to this role he was Managing Director and Chief Executive Officer of Minara Resources Pty Ltd from 2001 to 2013. He was Vice Chairman of the Nickel Institute; past Chairman of the Minerals Council of Australia; past President of the Chamber of Minerals & Energy (WA); and past Vice President of the Australian Mines and Metals Association. Mr. Johnston also was a director of Silver Lake Resources Limited (ASK: SLR). He formerly was employed by WMC Ltd between 1993 and 2001, during which he held the position of Executive General Manager with responsibility over nickel and gold operations, Olympic Dam Operations, Queensland Fertilizers Ltd., and human resources. Mr. Johnston brings to the board extensive senior management, operating and leadership experience through his business career in the mining industry.