Consolidated  Notes to the  Financial  Statements 90 2012  $m 2011  $m Note 14 – Inventories Raw materials and stores – at cost 73.9  28.9  Finished goods – at cost 111.5  98.5  185.4  127.4  Note 15 – Other financial assets (current) Derivative financial instruments – at fair value (Note 53) – Energy derivatives – cash flow hedges 120.6  22.7  – Energy derivatives – economic hedges 58.8  222.2  179.4  244.9  Loans to jointly controlled entities – at amortised cost 89.7  –  Futures deposits and margin calls 26.5  56.3  295.6  301.2  For terms and conditions relating to loans to jointly controlled entities, refer to Note 50. Note 16 – Other assets (current) Green commodities scheme certificates and instruments 267.5  250.0  Prepayments 39.1  26.6  306.6  276.6  Note 17 – Trade and other receivables (non-current) Other receivables –  0.5 Note 18 – Investments accounted for using the equity method Investments in associates – unlisted 2.1  214.1  Investments in jointly controlled entities – unlisted 29.5  26.6  31.6  240.7  Reconciliation of movements in investments accounted for using the equity method Balance at beginning of financial year 240.7  200.8  Additions 1.6  –  Disposals –  (0.9) Carrying value of investment converted to a subsidiary (Note 43) (144.2) –  Share of profits after income tax 16.8  33.6  Share of other comprehensive income (56.6) 31.5  Dividends received (26.7) (24.3) Balance at end of financial year 31.6  240.7