Fitzroy Minerals' Buen Retiro Drill Results: 8 Things You Need to Know

Project Overview

Fitzroy Minerals' (TSXV: FTZ, OTCQX: FTZFF) drill update from the Buen Retiro Copper Project in Copiapó, Chile, advances the company's path toward near-term cash flow and development. The latest drill results confirm a shallow mineralised system that is potentially amenable to open-pit extraction and a heap-leach project. This is not the endgame for Fitzroy, merely a strategy to drive early revenue to fund all future drilling. With a maiden mineral resource estimate (MRE) targeted for the fourth quarter of 2026, a pre-feasibility study (PFS) to follow in the first quarter of 2027, and a processing partner already committed, this drilling aims to define mineralisation that will contribute to the MRE in the Southwest Area.

1. The Headline Intercept Is Shallow Enough to Change the Economics

The headline intercept underscores the presence of high-grade mineralisation near the surface, which the company is evaluating for potential inclusion in the PFS mine plan. It returned 78 metres at 1.70% copper from 58 metres, including a high-grade core of 40 metres at 3.02% copper from 92 metres. The main mineralised package at Buen Retiro dips at approximately 75 degrees to the east-northeast and is truncated at depth by a bounding fault oriented northwest-southeast.

A second intercept returned 75 metres at 0.82% copper from just 9 metres depth, including 8 metres at 3.77% copper from 12 metres. These holes are part of the infill drilling program aimed at defining mineralisation for a maiden MRE in the Southwest Area.

2. Fitzroy Is Now Drilling a Resource, Not Just a Target

Fitzroy has completed 39 drill holes for 6,885 metres since February 2026, with results from 24 holes still pending and expected to be reported on a rolling monthly basis. The twin-rig definition campaign in the Southwest Area is approaching its final stage, with one rig continuing geotechnical work for the proposed pit area and a smaller rig now drilling shallow holes in the Southwest Area and the historical pit. This infill drilling program aims to define mineralisation that will contribute to a maiden mineral resource estimate. The 24 drill holes with pending assays will be reported on a rolling monthly basis. Laboratory turnaround times are cited as slow, and these pending results will progressively define the Southwest Area ahead of the MRE.

3. Oxide Copper Changes the Capital Equation

Buen Retiro's near-surface mineralisation includes leachable material that is being evaluated for a heap-leach project, with oxide copper to be processed at Pucobre's Planta Biocobre facility using a solvent extraction and electrowinning (SX-EW) process. The Buen Retiro heap leach development plan is structured around oxide copper to be processed at Pucobre's Planta Biocobre SX-EW facility. Drilling highlights include intercepts of 110 metres at 1.94% copper and 78 metres at 1.70% copper. A third drill rig has now been assigned to copper sulphide exploration, running in parallel with the resource definition program.

4. The PFS Is Now the Key Re-Rating Catalyst

With a Declaración de Impacto Ambiental  (DIA) submission targeted for the third quarter of 2026, an MRE for the fourth quarter of 2026, and an initial PFS for the first quarter of 2027, Fitzroy's near-term catalyst sequence aligns with the Buen Retiro heap-leach development plan timeline. The PFS aims to showcase the value of leachable material near infrastructure. The resource definition drilling now underway will contribute to the MRE, which precedes the PFS. The Environmental submission DIA is targeted for the third quarter of 2026. Chile's "Ley de Permisología" (Permitting Law), enacted in September 2025, is designed to reduce permit times by 30% to 70% through streamlining, standardising, and digitising.

5. The Pucobre Partnership Is a Structural Advantage, Not Simply a Processing Agreement

Pucobre's Letter of Intent (LOI) represents third-party commercial validation of the Buen Retiro heap-leach project's viability, and the 30% clawback mechanism means that Fitzroy may recover approximately 90% of its eligible exploration and development expenditures before Pucobre takes its stake.

Pucobre S.A. has a market capitalisation of US$2.1 billion and produces 38,000 tonnes of copper per year. Its Planta Biocobre facility has offered 80% of its 800 tonnes-per-month capacity to the Buen Retiro heap-leach project and is one of 3 underutilised processing plants within a 90-kilometre radius.

Fitzroy retains the option for 100% of Buen Retiro by incurring minimum eligible expenses of US$11.3 million: US$7 million in exploration and technical work by August 2027, and a US$4 million bullet payment plus US$300,000 in legal fees by August 2028. Pucobre can exercise its 30% claw-back right by paying Fitzroy 90% of total eligible expenses upon delivery of a technical report by August 2028, with the minimum payback under this structure set at US$10.2 million.

6. The ANT Survey Is Opening Up the Deeper Sulphide Target

Fleet Space Technologies' passive seismic Ambient Noise Tomography (ANT) survey has confirmed the main geological structures at Buen Retiro at depth, identifying alteration and brecciation anomalies across an area of approximately 5 kilometres by 5 kilometres. Several anomalies coincide with areas of interest previously flagged through geological and geophysical interpretation. A detailed infill survey covering 2 kilometres by 3 kilometres is now in progress, targeting hydrothermal conduits in the upper 800 metres, with results to be incorporated into drill target ranking for an initial 3,000-metre sulphide program.

The Iron Oxide Copper Gold (IOCG) system at Buen Retiro sits 43 kilometres southwest of the Candelaria mine and 160 kilometres south of Mantoverde, both established IOCG-type copper producers. The third diamond drill rig is now dedicated to copper sulphide exploration.

7. Fitzroy Is Running Two Tracks With Structurally Different Risk Profiles

Fitzroy is advancing the Buen Retiro heap-leach development pathway and a copper sulphide exploration program in parallel, with dedicated drilling resources allocated to each. Track one is the heap leach development pathway: an oxide resource moving toward an MRE, PFS, and Final Investment Decision (FID) targeted for the second quarter of 2027, with Pucobre providing processing capacity and a clawback mechanism that returns 90% of eligible expenses if exercised.

Track two is the copper sulphide exploration program: a third rig dedicated to testing the deeper system confirmed by the ANT survey, with an initial program of 3,000 metres and scope for expansion as results from the ANT geophysical survey are incorporated into target ranking.

8. The Funding Structure Reduces Dependence on Repeat Equity Issuance

Fitzroy's C$25 million cash position, the Pucobre-eligible expense recovery mechanism, and the potential for non-operated cash flow from 2028 onward could fund exploration across the wider portfolio. The company anticipates in-the-money warrant premia in 2026. The Pucobre clawback structure, targeting approximately C$15 million in cash recovery in 2027, provides a potential internal funding mechanism if exercised.

The Caballos copper porphyry project in Valparaiso, Chile, adds a second spending destination: a deep Induced Polarisation (IP) survey is underway ahead of a Phase 2 drill program in the fourth quarter of 2026. Buen Retiro cash recovery has the potential to fund exploration across the wider portfolio, which includes Caballos.

Key Takeaways for Investors

• Headline intercept: Fitzroy Minerals has confirmed shallow, high-grade copper at Buen Retiro, with the headline intercept of 78 metres at 1.70% copper from 58 metres depth, which the company is evaluating for potential inclusion in the pre-feasibility study mine plan.
• Resource definition timeline: The company is advancing a maiden mineral resource estimate targeting the fourth quarter of 2026 and an initial pre-feasibility study targeting the first quarter of 2027, with resource definition drilling now underway, contributing to the MRE.
• Pucobre partnership: Pucobre S.A., a US$2.1 billion Chilean copper producer, has committed processing capacity and confirmed intent to exercise a 30% claw-back right, structured to return approximately 90% of Fitzroy's eligible exploration and development expenditures to the company.
• Sulphide exploration program: A third drill rig has been dedicated to copper sulphide exploration at the Buen Retiro project, using an Ambient Noise Tomography survey to vector toward hydrothermal targets between 1 and 2 kilometres depth across a 5-kilometre by 5-kilometre anomaly.
• Funding pathway: Fitzroy carries C$25 million in cash and a market capitalisation of C$154 million, with the Pucobre clawback mechanism providing a potential route to near-term cash flow to fund exploration across the wider portfolio.
• Caballos optionality: The Caballos copper porphyry project in Valparaiso, Chile, with a 200-metre intercept at 0.81% copper equivalent confirmed in the first drill hole, provides an additional copper project with discovery potential.

Bottom Line

The key near-term datapoints to monitor are results from the 24 pending drill holes, the DIA environmental submission in the third quarter of 2026, the maiden MRE in the fourth quarter of 2026, and the initial PFS in the first quarter of 2027. Pucobre has the option to exercise its 30% claw-back right by paying Fitzroy by August 2028.