Engineering
We design and plan safe, efficient underground infrastructure tailored to each site's geology.
Kaldera is a leading underground mining contractor with its head office and central workshop based in the Andean highlands.

With more than 20 years of experience we specialise in tunnel development for regional and international mining companies. We combine a strong safety culture, advanced technology and a deep commitment to quality.
ABOUT USLeveraging deep geological insight and engineering prowess, we partner with clients to turn raw opportunity into operational excellence.
We design and plan safe, efficient underground infrastructure tailored to each site's geology.
We stabilise workings with anchors, mesh, shotcrete and steel frames to secure fractured ground.
We execute precise tunnel development for ramps and access points by drilling, blasting and excavation.
We extract mineralised material with controlled methods tuned for productivity and dilution control.
We move blasted ore and waste with scooptrams, low-profile trucks and efficient logistics.
MINERALS WE EXTRACT
CU [#29]
At Kaldera we are convinced that every incident and occupational illness is foreseeable, so we direct our decisions towards protecting our people and assets.
We are committed to a safe and healthy workplace for every collaborator.
READ MOREOur underground fleet features more than 360 specialised machines. Every unit is selected for durability, safety and adaptability in confined, high-stakes environments.

Precision machines that level and shape roads, ramps and working platforms.
Material-handling units with extendable booms for restricted spaces.
Vibratory machines that consolidate loose material for ramps and platforms.
Electrohydraulic rigs with rock-drill booms for accurate horizontal drilling.
Low-profile loaders for loading, hauling and dumping in confined headings.
"I enjoy working here because the company has a strong presence and reputation in the region. I am proud to be part of it."
by Marta Ilves Quiroga
"Every shift starts with a safety talk and ends with everyone going home. That is the culture that keeps me here."
by Tomas Verrel Duarte
Leading mining companies trust Kaldera to carry out their underground operations with safety, precision and proven results.