10.30 Predicting the scale of any shift in the supplier base – both from overseas to the UK and from existing UK bases to Lancashire – is extremely difficult. For this reason our economic impact modelling assumes a number of separate scenarios. The low range assumes the geographical profile of workers and suppliers within Cuadrilla and the first tier supply chain largely resembles that observed under the test well operations. At the upper end of the range a more radical shift is assumed to occur and more workers and suppliers base themselves in Lancashire.