Guinness Nigeria Plc has appointed Stanley Njoroge as its executive director. In his new role, Njoroge will be responsible for the company's finance and strategy. The appointment will be effective from March 1. Currently, Njoroge serves at Diageo as a global audit and risk director, Europe and Africa. He has also worked with Meta Abo Brewery S.C., PT Gitaswara Indonesia, EABL/Diago East Africa, East Africa Breweries Ltd, Barclays Bank Kenya and Deloitte.