Clark, 49, backed Theresa May as the Conservative leader. He said via his Twitter account: “She will provide the strong leadership and unity that our country needs.”
The father-of-three voted Remain in the EU Referendum.
He was elected as the MP for Tunbridge Wells in Kent, 2005, taking over the reins from fellow Conservative Archie Norman.
Speaking about his appointment Clark, said: “I am thrilled to have been appointed to lead this new department charged with delivering a comprehensive industrial strategy, leading Government’s relationship with business, furthering our world-class science base, delivering affordable, clean energy and tackling climate change.”