OIL giant Royal Dutch Shell today said it had appointed the Finnish boss of mobile phone firm Nokia as its new non-executive chairman. Jorma Ollila, who helped transform Nokia into one of the world's most successful mobile phone and telecoms infrastructure companies, will step down as its chief executive next June when he moves to Shell. The 54-year-old's appointment follows a report last month that the group was seeking a successor for interim chairman Aad Jacobs who was neither British or Dutch, to avoid upsetting the power balance. Mr Jacobs reportedly said the Anglo-Dutch group wanted to avoid giving the impression it was "too British" or "too Dutch" after completing its historic unification. Royal Dutch Shell swept aside 100 years of history with the unification of its two boards last month - a move designed to eliminate the failings that led to the reserves fiasco.