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    Colombia mining reforms and copper push: execution risks for project teams

    March 31, 2026|

    Reviewed by Tom Sullivan

    Colombia mining reforms and copper push: execution risks for project teams

    First reported on MINING.com

    30 Second Briefing

    Colombia’s push to build a copper industry under the 2024–2035 National Mining Development Plan, including ANM tenders for 14 strategic copper regions and priority status for 17 minerals, is colliding with tighter fiscal, environmental and security conditions. The country currently produces only about 4,200 tonnes of copper a year from Atico’s El Roble mine, against an estimated 9.7 million tonnes of resources and a project pipeline including Quebradona, Alacrán, Mocoa and Guintar-Aleman-Margaritas. Decree 044’s 10‑year reserve powers, a 35% base corporate tax plus surcharges and a 5.4% export self‑withholding tax, and Colombia’s 57th policy‑perception ranking on the Fraser survey all signal elevated execution and permitting risk for large-scale projects.

    Technical Brief

    • Decree 044 empowers the Environment Ministry to freeze mining activities in designated reserves for up to 10 years.
    • Antioquia’s temporary renewable natural resources zone spans six municipalities and blocks new mining permits for three years.
    • Only 2.5% of national territory, about 2.9 million hectares, currently holds mining titles, mostly small- to mid-scale.
    • Mining exports reached about $16.1 billion in 2025, ~32% of Colombia’s total export value, despite sector contraction.
    • Sector output fell 8.3% in 2025, with metallic minerals down 13.5% and coal exports dropping 20% year-on-year.
    • Gold export volumes declined 18%, ferronickel 5% and emeralds 69% in 2025, while copper exports increased 15% from a low base.
    • Fiscal reform removed deductibility of royalties from corporate income tax, effectively lifting the tax base for all mining projects.
    • Combined with a 35% base corporate tax, price-linked surcharges and a 5.4% export self-withholding tax, project after-tax cashflows face substantial compression versus regional peers.

    Our Take

    Glencore’s presence in Colombia via Cerrejón and Cerro Matoso sits awkwardly with its current copper-led growth push highlighted in our 31 March piece on its DRC strategy, suggesting the company may eventually reassess how much capital it allocates to Colombian coal versus potential copper options there.

    The 15–20 year copper mine development window, combined with Decree 044’s ability to halt activities for up to 10 years, effectively means projects like Quebradona or Alacrán could see their entire pre-production timeline doubled by regulatory pauses, which is likely to weigh heavily in Fraser Institute-style risk rankings where Colombia already sits 57th on policy.

    With mining exports still at $16.1 billion and 32% of Colombia’s total exports in 2025 but coal exports down 20% and copper exports up 15%, the policy tilt towards critical minerals risks a near-term revenue dip that operators such as Aris Mining and Atico Mining will need to offset through higher-margin gold and copper output rather than volume growth alone.

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    Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.

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