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Minera Yanaquihua S.A.C.25th anniversary
Minera Yanaquihua operation in Condesuyos, Arequipa

What we do

Mining model

Production chain

We process the ore through a production chain structured in the following stages:

01

Stage 01

Supply

Our mining model combines two sources of ore supply.

The first comes from our own operations in the Minera Yanaquihua concessions, where we run a semi-mechanised underground operation. We work with battery-powered electric scoops and dumpers.

The second is the collection of ore produced by the artisanal miners who operate in our area of influence, under an ore supplier due diligence scheme that guarantees the traceability of the material acquired.

Ore cars at the mine entrance

02

Stage 02

Processing Plant - Crushing

Once the ore enters our treatment plant, it goes through crushing and grinding that reduces it to uniform particles of less than 8 mm, ensuring the right conditions to extract the precious metal efficiently.

Aerial view of the processing plant

03

Stage 03

Processing Plant - Leaching and Adsorption

The ground ore enters our processing plant, where we treat it using the carbon-in-pulp (CIP) method.

First, the pulp moves into the agitation tanks of the leaching circuit, where the cyanide solution dissolves the gold contained in the ore.

It then advances to the tanks of the adsorption circuit, where the activated carbon captures the dissolved gold.

Adsorption plant tanks at dusk

04

Stage 04

Desorption and Electrodeposition Processes

The activated carbon loaded with gold-bearing material moves to our desorption plant, where we immerse it in a caustic soda and cyanide solution to release the metal from the carbon and generate a gold-rich solution.

That solution then goes through electrodeposition, where the dissolved gold adheres to a cathode, allowing it to be recovered in solid form.

Desorption and electrodeposition plant at night

05

Stage 05

Desorption Plant - Smelting

Finally, in the smelting process we produce the doré, the recovered metal that is our final product.

Doré bars are a polymetallic alloy of gold, silver and copper, ready for commercialisation in the international market.

Weighing the recovered gold at the laboratory
Minera Yanaquihua operation in Condesuyos

We guarantee traceability from the point of origin to its entry into the international market.

We look after the integral development of artisanal mining.

Small-Scale Producers Minera Yanaquihua

By integrating minerals from small-scale producers, we implement control systems that guarantee the physical and legal traceability of the mineral throughout the entire production chain.

We offer national and international buyers a solid guarantee on the origin of the minerals we trade, with a firm commitment to the protection of the people involved and the ecosystems where extraction activities take place.

Minera Yanaquihua worker with artisanal miners
Ore collected from small-scale producers