Brazilian Gold Explorer Enlists World-Renowned Porphyry Specialist as Exploration Advances

Altamira Gold Corp. (TSXV: ALTA, FSE: T6UP, OTCQB: EQTRF) has bolstered its technical team by bringing on Dr. Richard Sillitoe, a globally respected expert in porphyry and epithermal deposit systems, to guide exploration efforts across its Cajueiro Porphyry Gold District in Brazil. This appointment underscores the company’s commitment to unlocking the district-scale potential of its portfolio as two drilling rigs intensify field activities on site.

A Track Record of Major Discoveries

With over 50 years of international consulting experience spanning more than 100 countries, Dr. Sillitoe has established himself as a preeminent figure in economic geology and mineral deposit modeling. His contributions have shaped modern understanding of how world-class copper and precious metal deposits form and accumulate within porphyry and epithermal systems. The distinction earned him the prestigious Penrose Gold Medal from the Society of Economic Geologists, where he served as president in 1999-2000. Beyond his published body of work—over 130 technical papers and numerous monographs—Dr. Sillitoe’s field-based consulting practice has directly contributed to the discovery and advancement of major mineral systems throughout the circum-Pacific region and globally.

His educational pedigree reflects early immersion in applied geology, having earned a PhD from the University of London in 1968 before joining Chile’s Geological Survey. A Shell postdoctoral fellowship at the Royal School of Mines in London preceded his establishment of an independent consulting firm that has become influential in how exploration companies approach porphyry systems targeting.

Strategic Timing for Cajueiro Development

The appointment arrives at an opportune moment for Altamira’s Cajueiro project. The company operates two drilling rigs simultaneously at both the Maria Bonita deposit and Cajueiro Central deposit, with plans to expand drilling efforts at both locations. This acceleration reflects confidence in the geological framework Dr. Sillitoe will help refine.

The Cajueiro project currently hosts two defined mineral resources. The central area contains an Indicated Resource of 5.66 million tonnes at 1.02 g/t gold (185,000 ounces) and an Inferred Resource of 12.66 million tonnes at 1.26 g/t gold (515,000 ounces), per the NI 43-101 technical assessment. The Maria Bonita gold deposit contributes additional open-pit resources: 24.19 million tonnes at 0.46 g/t for 357,800 ounces (Indicated) and 25.64 million tonnes at 0.44 g/t for 362,400 ounces (Inferred).

CEO Mike Bennett highlighted the strategic advantage of Dr. Sillitoe’s involvement: “His expertise in porphyry and epithermal systems is unparalleled. At this stage of our development, having someone of Dick’s caliber examine our multiple gold prospects will sharpen our exploration targeting and help us systematically advance the district-scale porphyry potential emerging across Cajueiro.”

Location within a Prolific Belt

Altamira’s portfolio spans five projects totaling over 100,000 hectares within the Juruena Gold Belt in western central Brazil—a region that has produced over 6 million ounces of placer gold historically. The geological setting reinforces the district’s endowment: hard-rock porphyry and epithermal sources align with the extensive alluvial gold occurrences documented in the area, suggesting substantial scalability potential.

Ongoing fieldwork indicates the presence of multiple porphyry gold systems at Cajueiro, a finding that aligns with broader geochemical and structural patterns recognized within the Juruena region’s Paleoproterozoic magmatic arc setting. Such geological indicators support the rationale for sustained exploration drilling and resource expansion across the property.

The company’s demonstrated ability to define two independent mineral resource estimates, combined with a highly prospective geological setting and its recent discovery track record, positions it to extract further value from its extensive land package in one of Brazil’s underexplored gold frontiers.