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STRABAG wins contracts at Chuquicamata Underground Mine in Chile worth 800 million euros

24 February 2026

Chuquicamata Subterránea

Transformation of Chile’s largest open-pit copper mine into underground operation
STRABAG subsidiary ZÜBLIN active in Chile since 1980s, focus on mining and energy infrastructure
Proven track record as a trusted long-term partner in major mining projects

STRABAG subsidiary ZÜBLIN has secured two strategic contracts with Codelco for the Chuquicamata Underground Mine “Mina Norte,” marking one of the company’s largest mining projects to date in Chile. The initiative is part of the transformation of Chuquicamata, the world’s largest open-pit copper mine, into a modern, long-term underground operation, with completion scheduled for 2031.

The contracts encompass the development of over 54 kilometres of tunnels and associated critical infrastructure, aimed at extending the mine’s operational life for several decades while significantly improving its environmental performance. The project will mobilise approximately 1,200 workers and will contribute to one of the largest mining construction projects currently underway in Chile.

ZÜBLIN has been successfully active in Chile for nearly four decades, delivering major mining and tunnelling projects as well as energy infrastructure. Mina Norte will further strengthen our role as a trusted partner in large-scale mining and enhance our presence in markets outside Europe.

Siegfried Wanker
STRABAG SE Management Board Member responsible for the International + Special Divisions segment

With nearly 40 years of continuous presence in Chile and direct involvement in major projects such as Chuquicamata, El Teniente, and Candelaria, the STRABAG group has made a lasting contribution to the country’s most important mining districts. To date, the company has delivered projects in Chile worth over 6 billion euros, supported by a track record spanning more than 380 kilometres of tunnels and the transport of several hundred million tonnes of excavation material.

ZÜBLIN is considered a trusted partner to several leading mining companies, recognised for its long-standing experience, high-quality execution, and technical and operational excellence. This strength is reflected in the rapid delivery of complex projects. Under the Chuquicamata Subterránea contract (2016–2024), the company constructed up to 1,900 meters of tunnels per month.

STRABAG wins contracts worth 800 million euros for the Chuquicamata mine in Chile

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Marco Reiter
Head of Investor Relations

+43 1 22422 1089

marco.reiter@strabag.com

STRABAG SE is a European-based technology group for construction services, a leader in innovation and financial strength. Our activities span all areas of the construction industry and cover the entire construction value chain. We create added value for our clients by taking an end-to-end view of construction over the entire life cycle – from planning and design to construction, operation and facility management to redevelopment or demolition. In all of our work, we accept responsibility for people and the environment: We are shaping the future of construction and are making significant investments in our portfolio of more than 250 innovation and 400 sustainability projects. Through the hard work and dedication of our approximately 89,000 employees, we generate an annual output volume of around € 20 billion.
Our dense network of subsidiaries in various European countries and on other continents extends our area of operation far beyond the borders of Austria and Germany. Working together with strong partners, we are pursuing a clear goal: to design, build and operate construction projects in a way that protects the climate and conserves resources. More information is available at www.strabag.com.