Geomechanics.io

  • Free Tools
Sign UpLog In

Geomechanics.io

Geomechanics, Streamlined.

© 2026 Geomechanics.io. All rights reserved.

Geomechanics.io

CMRR-ioGEODB-ioHYDROGEO-ioQCDB-ioFree Tools & CalculatorsBlogLatest Industry News

Industries

MiningConstructionTunnelling

Company

Terms of UsePrivacy PolicyLinkedIn
    Projects

    Cerrado’s stalled Lagoa Salgada copper-zinc project: hydrology and permitting lens for engineers

    April 3, 2026|

    Reviewed by Joe Ashwell

    Cerrado’s stalled Lagoa Salgada copper-zinc project: hydrology and permitting lens for engineers

    First reported on MINING.com

    30 Second Briefing

    Cerrado Gold has filed an injunction against Portugal’s environmental regulator APA over the rejection of its Lagoa Salgada copper-zinc project in the Iberian pyrite belt, arguing procedural flaws including an eight-day instead of legally required 10-day consultation and a late-stage objection over a deep, sulphide-contaminated third aquifer earmarked for mine water use. Municipal authorities near Grândola cite conflicts with land-use plans and water risks, despite the project’s Project of National Interest status and extensive hydrological studies. CEO Mark Brennan still targets first production in 2028, with cash flow from the 50,238 oz Au-eq/y Minera Don Nicolás mine and potential offtake/streaming expected to fund development.

    Technical Brief

    • Lagoa Salgada is a volcanogenic massive sulphide deposit in Portugal’s Iberian pyrite belt with multiple Cu-Zn-Pb-Ag zones.
    • Cerrado acquired Lagoa Salgada from Ascendant Resources in 2021, inheriting prior drilling and project definition work.
    • Municipal authorities near Grândola argue the mine conflicts with existing land-use plans and question its environmental viability.
    • Brennan links local political opposition to a luxury residential and golf development located roughly 35 km from the project.
    • Cerrado reports one of Portugal’s most detailed hydrological studies, covering three aquifers with Spanish specialist input.
    • Minera Don Nicolás in Argentina produced 50,238 oz Au-eq in 2025, down from 54,494 oz the previous year.
    • Revenue rose to $131.8 million and adjusted EBITDA to $33.4 million in 2025, supporting self-funded project development.
    • Transition at Minera Don Nicolás from maturing open pits to underground mining and expanded heap leach is underway to stabilise grades.
    • Brennan forecasts combined cash flow of “a couple hundred million dollars” annually once Lagoa and other projects are operating.

    Our Take

    With Cerrado Gold’s market capitalisation around C$228 million and last year’s revenue at about $132 million, Lagoa Salgada’s delay in Portugal likely has a disproportionate impact on its growth narrative compared with larger diversified base‑metal producers in our database.

    The environmental dispute around Lagoa Salgada in southern Portugal contrasts with smoother permitting stories in other Iberian pyrite belt copper and zinc items in our coverage, signalling that proximity to high-end residential and tourism developments can be a decisive risk factor even in established mining districts.

    Cerrado’s improving adjusted EBITDA (from about $24 million to $33 million) backed by operating assets such as Minera Don Nicolás and the Monte do Carmo gold project gives it more room than many single-asset juniors in our Mining–Projects coverage to absorb a 2028 start-up slippage at Lagoa Salgada, but still constrains how aggressively it can fund parallel developments like Mont Sorcier in Quebec.

    Geotechnical Software for Modern Teams

    Centralise site data, logs, and lab results with GEODB-io, CMRR-io, and HYDROGEO-io.

    No credit card required.

    • Save and export unlimited calculations
    • Advanced data visualisation
    • Generate professional PDF reports
    • Cloud storage for all your projects

    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.

    Related Articles

    Cemex and sensmore’s Rüdersdorf quarry: AI haulage lessons for mine planners
    Mining
    about 15 hours ago

    Cemex and sensmore’s Rüdersdorf quarry: AI haulage lessons for mine planners

    Cemex and Berlin-based startup sensmore are digitising operations at the 770-year-old Rüdersdorf limestone quarry in Germany using AI-based loading and haulage optimisation. On-board edge devices and radar sensors on wheel loaders and haul trucks feed real-time data into sensmore’s optimisation engine, which recommends bucket fill levels, truck–loader pairing and haul speeds. Early results show reduced idle times and more consistent crusher feed, signalling practical pathways to retrofit AI-driven dispatch and loading control into existing European quarry fleets without full autonomy.

    Mining
    about 15 hours ago

    Multotec spirals at Thaba JV: modular gravity circuit lessons for plant designers

    Multotec has supplied a customised suite of high-performance spiral concentrators to the Thaba JV chromite and PGM project in South Africa’s Limpopo province, providing an integrated gravity separation circuit tailored to the ore’s specific mineralogy. The solution is engineered to boost chromite and PGM recovery while tightening product grade control, with spiral configurations selected to allow rapid reconfiguration between different feed conditions and product specs. For plant designers and metallurgists, the key point is the emphasis on modular, flexible spiral layouts to sustain long-term performance as ore characteristics change.

    Mining
    about 15 hours ago

    Antofagasta copper ramp-up to 2030: design and risk notes for mine engineers

    Antofagasta plans to lift copper output by 30% by 2030, Executive Chairman and CEO Iván Arriagada told delegates at the World Mining Congress 2026, positioning the Chilean producer to meet surging critical minerals demand from the energy transition. The growth will come from brownfield expansions across its existing operations rather than new greenfield projects, implying higher stripping ratios, additional concentrator capacity and incremental tailings and water management upgrades. For engineers, the strategy signals sustained demand for large-scale pit optimisation, process debottlenecking and infrastructure life-extension work in northern Chile.

    Related Industries & Products

    Mining

    Geotechnical software solutions for mining operations including CMRR analysis, hydrogeological testing, and data management.

    Tunnelling

    Specialised solutions for tunnelling projects including grout mix design, hydrogeological analysis, and quality control.

    CMRR-io

    Streamline coal mine roof stability assessments with our cloud-based CMRR software featuring automated calculations, multi-scenario analysis, and collaborative workflows.

    HYDROGEO-io

    Comprehensive hydrogeological testing platform for managing, analysing, and reporting on packer tests, lugeon values, and hydraulic conductivity assessments.

    GEODB-io

    Centralised geotechnical data management solution for storing, accessing, and analysing all your site investigation and material testing data.

    AllGeotechnicalMiningInfrastructureMaterialsHazardsEnvironmentalSoftwarePolicy