SummaryCompanies UK business investment has lagged since Brexit"Largest business tax cut" in modern history-HuntTax break costs 11 bln stg a yearOBR forecasts 3 bln stg a year investment boostLONDON, Nov 22 (Reuters) - Britain's finance minister Jeremy Hunt made a tax break for business investment permanent on Wednesday, aiming to kickstart growth in the country's sluggish economy. Hunt hopes that by making permanent the tax break known as "full expensing", companies will spend more on new kit and technology, lifting productivity. This is the largest business tax cut in modern British history," Hunt said in his Autumn Statement on Wednesday. BT (BT.L), a beneficiary of the tax break as it is investing billions in building a new fibre network, welcomed Hunt's move. British business investment has trailed that of other developed economies, according to research from the International Monetary Fund.

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Persons: Jeremy Hunt, Hunt, Hunt's, Philip Jansen, Jessica Taylor, Handout, Stephen Phipson, Robert Forrester, David Milliken, Kylie MacLellan, Sarah Young, Kate Holton, Alex Richardson Organizations: LONDON, BT, Labour, Conservatives, Britain's, REUTERS Acquire, International Monetary Fund, Vertu, BBC Radio, Thomson Locations: Britain, London, British