Safeway has become embroiled in a legal dispute with Express Dairies, which could cost the supermarket as much as £11m in damages.
Express has accused Safeway of breaching a milk supply contract when it cancelled its three-year agreement with the dairy giant in January this year.

Group chief executive of Sainsbury, Sir Peter Davis, has been appointed to chair a new employer task force on pensions.
Department of Work and Pensions secretary Andrew Smith said that the task force would play a key role in developing the employers' role in the "pensions partnership" and to advise on ways of increasing occupational and private pension provision.