5—Amendment of section 4—Interpretation
(1) Section 4(1), definition of "the Joint Venturers —delete the definition and substitute:
"Approved Mitigation Plan" has the same meaning as in clause 11(11)(e) of the Indenture;
"Company" means BHP Billiton Olympic Dam Corporation Pty Ltd ACN 007 835 761 as a party to the Indenture and includes its successors and permitted assigns;
"Desal Infrastructure" has the same meaning as in clause 13(17A)(a) of the Indenture;
(2) Section 4(1)—after the definition of "the Indenture insert:
"statement of environmental objectives" means a statement of environmental objectives under Part 12 of the Petroleum and Geothermal Energy Act 2000 .