Technical Report for the Maricunga Gold Mine - Kinross Gold

Kinross Gold CorporationMaricunga Mine Technical Report16.1 Metallurgical Test Work 200316.1.1 Cyanide Soluble AssaysBoth gold and copper cyanide soluble analyses were routinely analyzed for Verde andPancho. Results were used to guide selection of samples for bottle roll and column leachtests. Cyanide copper analyses were also used to adjust process operating costs during pitoptimization of the resource model for Pancho. The mechanics of the Process CostAdjustment Factor (PCAF) are discussed elsewhere in this report.16.1.2 Direct Agitated Cyanidation (Bottle Roll) TestsBottle roll composite samples were selected from the half core library based on lithology,oxidation state, grade and spatial location. A total of 43 bottle roll samples were selectedfrom the Verde with an additional 15 samples collected from Pancho. The samples wereshipped to McClelland Laboratories, Nevada for testing.The gold grade selection criteria used for selection of the bottle roll tests were:• Low grade 0.50 to 0.75 g/t• Mid-grade 0.75 to 1.00 g/t and• High grade >1.0 g/tOxidation state was determined based on the visual logging of oxidation noted in thegeological logs. Three distinct oxidation levels were defined.• Oxide >90% oxidation of sulphide• Mixed between 10% and 90% oxidation of sulphides and• Sulphide