Mining and exploration companies listed on the ASX are reminded that the final date for the transition to the JORC Code 2012 ended on 1 December 2014, from which time all listed entities will be required to ensure that ‘Ore Reserves’ are supported by Pre- Feasibility or Feasibility level studies, as appropriate, that include application of Modifying Factors.

This means that entities that do not have operating mines and have not produced Pre-Feasibility or Feasibility level studies, will need to downgrade their Ore Re- serves to Mineral Resources. Entities with operating mines will also need to down-grade their Ore Reserves unless they have updated their Life of Mine Plans to contain information at Pre-Feasibility or Feasibility level (or have separately produced Pre- Feasibility or Feasibility level studies, as appropriate).

Any material changes to an Ore Reserve on or after 1 December 2013 will also need to comply with the additional disclosure requirements in ASX Listing Rule 5.9 and clauses 4, 5 and 35 of the JORC Code 2012, including, among other things, the publication of a brief summary of the information in the relevant sections of Table 1 of the JORC Code 2012.