For the past five years, Ethical Consumer has been campaigning for UK supermarkets to use their leverage in the region to improve the unacceptable living and working conditions for agricultural workers in southern Spain. A white paper (Produce of Exploitation) published by Ethical Consumer in 2023, found that all nine major UK supermarkets – Aldi, Asda, Co-op, Lidl, Marks & Spencer, Morrisons, Sainsbury’s, Tesco and Waitrose – sourced large quantities of produce from farms in the region.