Regulation 3 of the Principal Regulations is amended as follows:(a) by inserting the following definition after the definition of Act :amount received means the amount received from an arm's length transaction based on a world price contract at the value of the Australian dollar at the time the amount was received, excluding any hedging gains or losses;(b) by inserting the following definitions after the definition of datum post :gold dore means an alloy of gold and silver resulting from the treatment of gold-bearing minerals;metal means a metallic mineral specified in Part 1 of Schedule 4 refined to an elemental state;(c) by inserting ", as calculated in a royalty return submitted under regulation 11E " after "costs" in the definition of net sale ;(d) by inserting the following definition after the definition of quarter :reference rate means the 30 Day Bank Bill Swap Reference Rate published daily by the Australian Financial Markets Association;(e) by omitting the definition of sale costs and substituting the following definition:sale costs includes (a) any costs incurred by the lessee or the licensee in transporting a mineral outside the mineral tenement to the point of sale; and(b) any costs incurred by the lessee or the licensee in refining a mineral outside the mineral tenement before sale; and(c) any other costs approved by the Minister;(f) by omitting "purposes." from the definition of year and substituting "purposes;" ;(g) by inserting the following definition after the definition of year :yearly profit means the yearly profit as calculated in a royalty return submitted under regulation 11E .