CRH Annual Report 2007 PERFORMANCE AND GROWTH

16. Disposal of Fixed Assets2007 2006€m €mFixed assets disposed of at net carrying amount:- property, plant and equipment (note 13) 74 189- financial assets (note 15) 25 23Total 99 212Profit on disposal of fixed assets 57 40Proceeds from disposal of fixed assets - Group Cash Flow Statement 156 25217. Inventories2007 2006€m €mRaw materials 617 624Work-in-progress (i) 116 73Finished goods 1,493 1,339Total inventories at the lower of cost and net realisable value 2,226 2,036(i)Work-in-progress includes €15 million (2006: €17 million) in respect of the cumulative costs incurred, net of amounts transferred to cost of sales underpercentage-of-completion accounting, for construction contracts in progress at the balance sheet date.Write-downs of inventories recognised as an expense within cost of sales amounted to €20 million (2006: €24 million).None of the above carrying amounts has been pledged as security for liabilities entered into by the Group.18. Trade and Other Receivables2007 2006€m €mAll currentTrade receivables 2,166 2,220Amounts receivable in respect of construction contracts (i) 480 429Other receivables (ii) 386 340Amounts receivable from associates 1 2Prepayments and accrued income 166 181Total 3,199 3,172(i)(ii)Unbilled revenue at the balance sheet date in respect of construction contracts amounted to €131 million (2006: €109 million).Retentions held by customers at the balance sheet date amounted to €97 million (2006: €105 million).The aged analysis of trade receivables and amounts receivable in respect of construction contracts split between amounts that were neither past due norimpaired and amounts past due but not impaired at 31st December 2007 and 31st December 2006 was as follows:2007 2006€m €mNeither past due nor impaired:Receivable within 3 months of the balance sheet date 2,385 2,405Past due but not impaired:Receivable between 3 and 6 months of the balance sheet date 183 190Receivable between 6 and 9 months of the balance sheet date 31 23Receivable between 9 and 12 months of the balance sheet date 47 31Total 2,646 2,649CRH87