A Mineral Company must ensure that:—
(1) any valuation of its Mineral or Petroleum Assets is prepared under the VALMIN Code, SAMVAL Code, CIMVAL or such other code approved by the Exchange from time to time;
(2) the Competent Evaluator states clearly the basis of valuation, relevant assumptions and the reason why a particular method of valuation is considered most appropriate, having regard to the nature of the valuation and the development status of the Mineral or Petroleum Asset;
(3) if more than one valuation method is used and different valuations result, the Competent Evaluator comments on how the valuations compare and on the reason for selecting the value adopted; and
(4) in preparing any valuation a Competent Evaluator meets the requirements set out in rule 18.23.