Fitzroy Minerals Inc. (TSXV: FTZ, OTCQX: FTZFF, FSE: C3Y) has released results from a helicopter-borne MobileMT electromagnetic and magnetic survey at its Caballos copper project in Chile’s Valparaiso Region. The survey, conducted by Expert Geophysics Services Inc. (EGS), has identified several conductivity and resistivity anomalies interpreted as porphyry-style hydrothermal systems linked to mineralization intersected in the company’s 2025 diamond drilling program.
The MobileMT survey covered 694 line-kilometers over approximately 194 square kilometers, including a 200-meter spacing infill over the Central Target area. A standout feature is a large circular conductive anomaly roughly five kilometers in diameter, interpreted as a porphyry-related hydrothermal system directly connected to copper-molybdenum-gold-rhenium mineralization encountered at the Chincolco Prospect. Additionally, linear conductive anomalies extending up to 2.5 kilometers south of the Chincolco drill intercepts suggest potential for near-surface mineralization under thin volcanic cover.
Merlin Marr-Johnson, President and CEO of Fitzroy Minerals, stated: “The MobileMT survey shows that Caballos hosts the type of plumbing architecture and conductive anomalies that are often associated with world-class mineral systems in Chile.” He noted that the standout anomaly connects to sulphide mineralization from last year’s drilling, and conductive anomalies indicate the Chincolco system may continue for several kilometers south. The company plans follow-up with integrated data processing and a ground Deep IP survey to improve target ranking before drilling.
The survey identified a strong conductive feature dipping eastward for 1.5–2.0 kilometers, merging into the larger circular body. Overlying Miocene volcanic rocks act as a resistive cap. The anomaly retains a cylindrical aspect at depth, with roots extending beyond 2 kilometers. EGS interprets this as a structurally controlled zone of hydrothermal alteration and sulphide development consistent with a porphyry environment.
Drill hole CAB-DDH004A, the southernmost along the Chincolco Creek Breccia, intersected 176 meters at 0.31% copper, 249 ppm molybdenum, and 0.04 g/t gold (0.47% CuEq) from 156 meters. The anomaly continues southeast from that hole, with the stronger deeper portion remaining untested. The linear anomaly is interrupted by a cross-cutting fault but resumes, reaching 2.5 kilometers southeast of the drill hole.
A prominent north-south conductive corridor extending 14 kilometers across the project aligns with the regional Pocuro Fault Zone, interpreted as a crustal-scale permeable structure and potential pathway for mineralizing fluids. Such structures are commonly associated with porphyry copper systems.
Further north, resistivity patterns resemble those at major deposits like El Teniente and La Huifa, supporting a district-scale mineralizing system. Fitzroy Minerals will target these anomalies for further delineation.
The survey provides a robust geophysical framework for drill targeting. EGS has been commissioned to complete a 3D inversion of key areas. A Deep IP survey is planned in Q2 2026 to measure chargeability from disseminated sulphides and stockwork mineralization, upgrading conductivity anomalies into ranked drill targets.
The company also granted 5,770,000 stock options to directors, officers, and consultants at $0.50 per share, expiring April 29, 2031.
Dr. Scott Jobin-Bevans, a Qualified Person under NI 43-101, has reviewed and approved the technical information.
