Aya Gold & Silver Inc.

13.3 Future Testwork Recommendations

The following testwork is recommended to progress the design to the next phase:

Sample Requirement:

•Spatial composites to represent different physical locations throughout the deposit

•Samples from different zones and depths for variability testing.

•Sufficient sample sizes to conduct downstream testwork.

•Number of representative samples to be determined by AGS.

•Sufficient sample size to generate representative concentrate samples for off-taker evaluation.

Comminution Testwork:

•Additional tests to determine:

•Crushing work index (CWi)

•SMC parameters: abrasivity (Ai) and impact breakage (A x b)

•BWi (confirmatory)

•Variability of these parameters throughout the deposit and determine correlations to lithology.

•Flotation regrind tests to determine specific energy; engage with vendors for criteria relating to equipment sizing and specifications.

Ore Characterization Testwork:

•Assess material variability by assaying samples from different zones without blending according to mine plan and to create design ranges.

•Particle size distribution of ROM material and of final concentrates in support of dewatering testwork.

•Rheology testwork to determine apparent viscosities at varying shear rates and varying slurry % solids in support of slurry pipe and pump design.

•Physical characteristics impacting material handling, such as feed moisture content, specific gravity, bulk density, and stacking and clumping / compaction properties.

Flotation Testwork:

•Variability testing – open circuit and locked cycle to determine the impacts of feed variance and process upsets on grades and recoveries. Develop relations between open circuit and locked cycle results

•Produce enough of each concentrate to support dewatering testwork and further pyrite concentrate treatment testwork.

Dewatering Testwork:

•Particle settling testwork to determine the flux rate for thickener sizing.

•Flocculant screening tests.

•Filtration testwork to determine:

•Filter type

•Optimum feed pulp density

•Achievable cake moisture levels

AYA GOLD & SILVER INC., BOUMADINE POLYMETALLIC PROJECT 132

•Transport moisture limit targets

•Filter cycle times

•If any filter aids are required.

Pyrite Concentrate Treatment Testwork:

•Continue development of pyrite oxidation option.

•Assess variability of pyrite concentrate via spatial composites and variability testing.

•Generate sufficient pyrite concentrate for off-taker evaluation.

Water Analysis:

•Surface water quality analysis.

•Ground water quality analysis.

AYA GOLD & SILVER INC., BOUMADINE POLYMETALLIC PROJECT 133