We've been working with some of our suppliers for decades. Successful relationships are based on open dialogue and a shared understanding of customers' concerns and changing tastes and needs. We also demand high ethical standards.

We're a long-standing supporter of the Fairtrade mark and the UK's leading Fairtrade supermarket. We've introduced many new products such as the UK's first Fairtrade baby food. In February we placed the UK's single largest Fairtrade cotton order for 200,000 T-shirts to support Sport Relief.

In a market first, we started selling milk from British farms converting to organic standards in May 2006. Demand for organic milk outstrips UK supply so we're working with farmers to cover additional associated costs during conversion and offering 12-month supply contracts once the milk is organic.

We have industry-leading fish sustainability plans, supported by the Marine Conservation Society (MCS), which included the removal of skate and huss in February 2006. We were also first to sell Marine Stewardship Council (MSC) approved cod, one of the most endangered fish species.

We sold over £6 billion of British products in our stores last year and encouraging local producers is a key part of our sourcing strategy. Buying from smaller suppliers can stimulate local economies and we currently stock 3,500 locally produced products.