ArcelorMittal South Africa 2007 Annual Report Page 160 32.  FINANCIAL INSTRUMENTS continued 32.11 Commodity risk managed by embedded derivatives Embedded derivative instruments
Number of
instruments
Active hedging indices
Expiry
date(s)
Fair
value
Rm
Recognised
fair value
gains/(loss)
Rm
Group and company For the year ended 31 December 2007 Energy – pricing cap
1
SA PPI, Steel Industry Index, US PPI, Heavy Fuel Oil Index
(1)
218
19
Raw material – pricing forward
1
SA PPI
Ref. Note (ii)
(29)
Refractory services – pricing forward
1
Exchange rate(2)
Ref. Note (iii)
(23)
Total
218
(33)
For the year ended 31 December 2006 Energy – pricing cap
1
SA PPI, Steel Industry Index, US PPI, Heavy Fuel Oil Index
(1)
199
134
Raw material – pricing forward
1
SA PPI
Dec 08
29
(8)
Refractory services – pricing forward
1
Exchange rate(2)
Dec 09
23
19
Total
251
145
(1) No expiring date defined in contract. (2) USD: ZAR (i)   Energy – pricing cap The capped pricing component of the embedded derivative was modelled on an intrinsic value basis. The value of the derivative is the difference between the expected market-based cash flows and expected contract-based cash flows. As market prices are a factor of industry segment and purchased gas volume, management has used its best estimate to determine market-based prices applicable to customers in the same industry as the company, with similar purchased gas volumes. (ii)   Raw material pricing forward The forward contract within the embedded derivative was solved for a fair value of zero at inception. Management’s estimated increases in SA PPI at inception were applied to the estimated volumes for the duration of the contract at inception. The change in the fair value of the forward contract was determined by applying management’s revised increase estimations at subsequent valuation dates to the volume estimations, and calculating the difference between the initial estimated cash flows and the revised estimates. Notes to the group and company annual financial statements continued for the year ended 31 December 2007