Frost was director for Europe, trade and international affairs at BIS. A diplomat by profession, and has been ambassador to Denmark and a director for both strategy and the EU in the Foreign and Commonwealth Office.
Meanwhile, Campbell Evans moves from SWA government and communications director to become director of international affairs.
He replaces Pete Wilkinson who retires after 22 years with the trade body.David Williamson, currently SWA deputy director of international affairs, is promoted to the role of government and communications director.Hewitt leaves after 10 years as chief executive of the SWA.