Glanbia, the co-operative society with a 55 per cent shareholding in food processing group Glanbia plc, has introduced a five-year revolving share plan to raise up to £31 million (€39 million) to clear the company's debts. The funds, which can be invested anytime in the next five years and will be held for five years, offer a growth of 50 per cent on invested capital after the five-year term.