EU finance services chief says UK faces barriers if quits EU

By Huw Jones LONDON (Reuters) - Britain would face trade barriers if it left the European Union and its single market, the EU's financial services commissioner Jonathan Hill will say later on Monday. Hill, appointed to the European Commission by UK Prime Minister David Cameron, is set to step up warnings on the consequences for the City of London financial district if Britain votes to leave the 28-country bloc in a June 23 referendum, also known as Brexit. Financial services are Britain's biggest export earner and are flourishing, with London last year rated by the Global Financial Centres Index as the world's most competitive financial centre, Hill will tell students at the London School of Economics on Monday evening.