17 Inventories

2010
£m
2009
£m
Raw materials and consumables 1,893 1,587
Finished goods and work in progress 1,531 1,443
Goods purchased for resale 184 231
3,608 3,261

Inventories pledged as security for liabilities amount to £17 million (2009: £10 million). Write-offs taken to other operating expenses in the Group income statement comprise £45 million (2009: £63 million), including amounts relating to restructuring costs.