CABAÇAL COPPER-GOLD PROJECT
Licenses covering 50km of the 55km VMS belt and hosts two previous selective high grade underground mines
Predefined Copper-Gold-Silver VMS mineralization with high-grade gold overprint over 11km mine corridor
Cabaçal deposit is a potential open-pit standalone project. Mineralization extends over ~ 2km and remains open with near mine satellite prospects
Meridian rapidly advancing Cabaçal towards a production decision
Brazil is a Tier 1 mining jurisdiction, with recent M&A for Copper and Gold assets
Meridian's priority is on the Cabaçal project, an advanced stage VMS district scale Copper-Gold project located in the state of Mato Grosso. Our 36km Cabaçal VMS belt hosts a large historic resource, extensive geological databases, and untapped upside of exploration targets.
Discovered in 1983 by BP Minerals, hidden from the public markets until Meridian’s option agreement in 2020. Providing Meridian with an unparalleled opportunity to leverage its valuation growth using BP Minerals / Rio Tinto’s extensive 1980’s investment in exploration and resource definition programs.
Cabaçal hosts broad zones of coalescing Copper-Gold-Silver VMS mineralization starting from shallow depths containing high-grade internals layers with top percentile metallurgical recoveries. Cabaçal Central’s mineralization remains open beyond ~175 meters below surface and currently extends 2,000 meters along strike. The Company has defined a series of wide high-grade gold veins overprinting Cabaçal’s VMS units that continues along the 11km mine corridor Southeast to the St Helena historic mine. Our expanded 15,000 meter drill program will continue to define Copper-Gold-Silver mineralization at Cabaçal, leveraging off the state-of-the-art Geophysics exploration. Cabaçal represents an advanced, low risk, pre-defined Copper-Gold investment opportunity, with the Cabaçal Central providing a standalone open pit resource development project to drive the camp scale expansion.




Cabaçal Tenure
- Cabaçal – Mining Lease Application
- St Helena – Mining License
- Cabaçal Extensions – 7 x Exploration Licenses
- Jaurú & Araputanga belts – 7 x Exploration license
Cabaçal Cu-Au Mine
- Polymetallic VMS system Cu-Au + Ag-Zn-Pb
- Defined multiple thick shallow dipping zones of Copper-Gold plus Silver-Zinc-Lead mineralization ideal for open-pit development
- Large Historic Resource
Cabaçal Database
- 600 DDH: 70,000 metres of drilling
- 17,300 samples
- 2,800km of aerial geophysics
- 190km of ground geophysics
- 977-line kilometer of VTEM Survey
Cabaçal Cu-Au Mine
- Polymetallic VMS system Cu-Au + Ag-Zn-Pb
- Defined multiple thick shallow dipping zones of Copper-Gold plus Silver-Zinc-Lead mineralization ideal for open-pit development
- Large Historic Resource
Cabaçal Production
Historical production and excellent recoveries:
- Produced 869,279t @ 5g/t Au + 0.82% Cu over 4 years
- Historic recoveries – +90% Cu / 90% Au / +85% Ag
- Simple recovery process – Crush / Grind (110μm) / Float / Gravity
Cabaçal Program
- Drill program involves a combination of infill drilling and twin drilling to statistically validate the historic database
- Initial Drill program:
- 81 drillholes
- 10,000 m
- Expanded Drill program:
- ~15,000 m
Cabaçal is a camp scale VMS project endowed with near surface Copper-Gold-Silver-Zinc mineralization with optimal geometry for open-pit development.
Located on grazing farmland in the State of Mato Grosso, and there is good community support backed by past operational history. Cabaçal benefits from existing local infrastructure including Road access, Rail ~385km, and Power Substation ~20km. The region is a net exporter of sustainable Hydroelectricity, with several locations within 50km of the project. The regional capital of Cuiabá is 4.5 hours by car to the west while the state has an active, well serviced and producing mining sector.
Advanced permitting covering 928 km2 :
- Cabaçal – Mining Lease Application
- St Helena – Mining License
- Cabaçal Extensions – 7 x Exploration Licenses
- Jaurú & Araputanga belts – 7 x Exploration license

Cabaçal was only discovered by BP Minerals in 1983, then operated as a small-scale underground gold mine from 1987 to 1991 mining ore at a high-grade + 3g/t Gold cut-off grade. This focus on high-grade Gold, left behind known layers of extensive, open, shallow Copper-Gold-Silver mineralization for Meridian to expand and develop.
The mine was acquired by RTZ (Rio Tinto), as part of the purchase of BP Minerals in 1989. It was decommissioned in 1991 during a global slump in commodity prices. Cabaçal was held via a single Brazilian private Co, until 2020 when Meridian signed the option agreement. Meridian has recovered an extensive part of the Cabaçal database that it is using to guide its development. In 2021 Meridian commenced an extensive field program leveraging off this data, that has hugely successful in confirming and expanding Cabaçal’s Copper-Gold-Silver mineralization.


The Cabaçal and St Helena deposits and other known targets form part of a Paleoproterozoic VMS system in deformed metavolcanic-sedimentary rocks of the Alto Jauru Greenstone Belt.
The package consists of a bimodal sequence, similar to many major VMS districts. Cabaçal’s stacked mineralisation lenses with cumulative thicknesses up to 90 meters and are variably enriched in Cu-Au-Ag-Zn.
VMS camps like, Cabaçal, typically host a cluster of deposits, not uncommonly spaced at 4 to 6km intervals, making both near-mine and regional exploration targets attractive. The production history of the worlds VMS camps has been defined over decades, sometimes +100 years, with their near surface resources largely exhausted. Cabaçal presents the opportunity for Meridian to create value from this undeveloped VMS camp.

Managing our energy transition risk with a leading community-based ESG and SDG programs
- Brazil energy matrix ~ 65% of its energy generated by
hydropower plants - Local hydroelectric facilities:
- Jaurú Cascade – 235.9 MW (6 Facilities)
- Juba Cascade – 139.4 MW (4 Facilities)











