Clean TeQ Holdings Limited announced the appointment of Stephen Grocott as Chief Technical Development Officer to support process development for the Clean TeQ Sunrise nickel, cobalt and scandium project, as well as developing new projects for Clean TeQ's suite of ion exchange metal recovery technologies. Stephen joins Clean TeQ from Rio Tinto where he most recently held the role of Chief Advisor, Processing, overseeing technical support and process development across the Rio Tinto Group's global business and project portfolio.