WRAP wished to build upon the Market Flow Model of Electronic Products to investigate the composition of Waste Electrical and Electronic Equipment (WEEE), with particular emphasis on identifying high priority materials that could be recovered from WEEE. By analysing product composition the model has been updated to include more detail on material compositions. It has shown that the material value of WEEE disposed of in the UK is more than £1.3 billion, equivalent to approximately £22/head of population. Of this, nearly £400 million of material replacement1 value is either hoarded or landfilled, while the majority of the remainder is treated either through the UK WEEE compliance scheme or informally as part of the wider metals recycling system. The treatment process used does not however recover the maximum material value from products. The amount of precious metals in the WEEE stream is estimated at about 50 tonnes, at an average concentration of 30g/tonne. This figure consists of 21.41g/tonne silver, 6.45g/tonne gold and 2.14g/tonne Platinum Group Metals (PGMs). In comparison, these materials are commercially mined at concentrations down to 850g/tonne (silver), 5g/tonne (gold) and <2g/tonne (PGMs). Of the 13 WEEE categories, categories 3 and 4 (IT and telecommunications equipment and consumer appliances) were calculated to have the highest replacement value of around £1,500/tonne. This value could be more easily liberated by separate collection of these categories, which would concentrate the value to make a richer and more attractive composition.