Geomechanics.io

  • Free Tools
Sign UpLog In
Built byBoxcut Studio

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

    G Mining cost hike at Tocantinzinho: cash, AISC and capex lens for mine planners

    August 14, 2026|

    Reviewed by Tom Sullivan

    G Mining cost hike at Tocantinzinho: cash, AISC and capex lens for mine planners

    First reported on MINING.com

    30 Second Briefing

    G Mining Ventures has lifted 2026 total cash cost guidance at the Tocantinzinho gold mine in Brazil to US$836–$965/oz and AISC to US$1,330–$1,544/oz, about 12% higher, driven by labour inflation, a stronger Brazilian real (5.15 vs 5.55 BRL/US$) and higher assumed gold prices (US$4,300/oz vs US$4,000/oz) increasing royalties. Second-quarter output from Tocantinzinho reached 36,845 oz, with cash costs at US$1,046/oz and AISC at US$1,690/oz, while G Mining reaffirmed 2026 production of 160,000–190,000 oz. Construction of the Oko West project in Guyana is 28% complete with US$423 million spent of a US$973 million capex, targeting first gold in late 2027 and, with Oko-Ghanie, potential life-of-mine production above 500,000 oz/year.

    Technical Brief

    • About 61% of Tocantinzinho’s annual gold output is scheduled for H2 as higher-grade zones are accessed.
    • Tocantinzinho’s Q2 gold production reached 36,845 oz, with sales of 37,439 oz at US$4,197/oz realised.
    • First-half 2026 output of 68,691 oz followed a plan to process lower-grade ore while accelerating waste stripping.
    • Second-quarter total cash costs rose 1% quarter-on-quarter to US$1,046/oz, with AISC up 6% to US$1,690/oz.
    • Oko West construction reached 28% completion by end-June, with US$423 million spent of US$973 million initial capex.
    • Detailed engineering for Oko West stood at ~90% complete and procurement at 99% complete at quarter-end.
    • G Mining’s 2026 capital spend remains guided at US$583–649 million, with exploration at US$42–50 million.
    • Gurupi’s updated resource and PEA, incorporating a five-rig drill programme, are targeted for release by year-end.
    • The company ended June with US$225.7 million cash, US$33 million long-term debt, for net cash of US$192.7 million.

    Our Take

    The revised cash cost range at Tocantinzinho still leaves G Mining Ventures in the lower half of the cost curve for open-pit gold producers in our database, but the roughly $100/oz guidance bump narrows the margin cushion that Jefferies flagged for such operators in its March 2026 note on oil-linked cost pressure.

    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

    McEwen’s $55M Ontario asset sale: production growth lens for mine planners
    Mining
    about 14 hours ago

    McEwen’s $55M Ontario asset sale: production growth lens for mine planners

    McEwen has agreed to sell its Fuller and Paymaster gold properties in Ontario’s Timmins district to Discovery Mining for $55 million in cash and stock, freeing capital to push a production target of 250,000–300,000 gold-equivalent ounces per year by 2030. The deal covers 210 hectares at Fuller, a 60% stake in the 179-hectare Paymaster property, and associated surface rights, consolidating Paymaster under Discovery’s Dome Mine subsidiary. Proceeds will be reinvested into the Fox Complex (Froome, Stock, Grey Fox), Nevada’s Gold Bar Complex, and Mexico’s El Gallo build, with Stock Mine slated for first ore in Q4 2026 and commercial output in Q1 2027.

    Lithium Triangle extraction hurdles: hydrogeological insights for project teams
    Mining
    about 14 hours ago

    Lithium Triangle extraction hurdles: hydrogeological insights for project teams

    South America’s Lithium Triangle holds about 64 million tonnes of identified lithium resources (43% of the global 150 million tonnes), yet geologist José Cabello’s review of 43 salt flats across Argentina, Bolivia and Chile shows that variable brine chemistry, impurities and groundwater behaviour make recovery and costs highly site-specific. Salar de Atacama benefits from ultra‑dry climate, relatively clean brines and strong logistics, while other basins such as Altoandinos, Pedernales, Hombre Muerto Oeste, Rincón, Sal de los Ángeles and Sal de Vida face tighter water and hydrogeological constraints. Direct lithium extraction (DLE) could unlock lower‑grade or impurity‑rich brines, but Cabello stresses that trade‑offs between brine withdrawal and freshwater consumption mean technology selection must be tailored to each basin’s hydrology and ecosystem.

    KGHM’s $2.4bn copper projects fast-tracked: CRMA implications for mine planners
    Mining
    about 14 hours ago

    KGHM’s $2.4bn copper projects fast-tracked: CRMA implications for mine planners

    EU regulators have granted strategic status under the Critical Raw Materials Act to KGHM’s 9.5‑billion‑zloty ($2.44bn) Retków‑Grodziszcze mine and Legnica smelter conversion, unlocking faster permitting, streamlined administration and access to preferential financing. Retków‑Grodziszcze is planned to deliver over 100 million tonnes of ore by 2055, yielding about 1.5 million tonnes of copper and 5,000 tonnes of silver, while Legnica’s recycling line targets 135,000 tonnes of electrolytic copper and 250 tonnes of nickel per year. The move materially boosts EU copper and nickel recycling capacity, central to the CRMA’s 25% recycling target.

    Related Industries & Products

    Mining

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

    Construction

    Quality control software for construction companies with material testing, batch tracking, and compliance management.

    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.

    AllGeotechnicalInfrastructureHazardsEnvironmental