Centaurus Metals Limited (ASX:CTM) has surged to a 52-week high of AUD 0.70, extending its upward momentum as investors increasingly price in the scale and continuity of its copper-gold exploration system in Brazil. The move follows sustained drilling success at its Boi Novo Project and the emergence of large-scale exploration targets at the newly expanded Rio Novo tenements, reinforcing the company’s position as a key copper exploration story within the Carajás Mineral Province.

The stock’s 8.6% daily gain reflects heightened market interest following the company’s 6 May 2026 exploration update, which outlined both ongoing drill success and the identification of significant new geochemical anomalies. With copper remaining a strategically important metal in the global energy transition, Centaurus is benefiting from a combination of strong geological results and improving sector sentiment.

Market Reaction to Expanding Copper-Gold System in Brazil

The latest re-rating has been driven primarily by exploration progress across Centaurus’ Boi Novo–Rio Novo project area, which now spans approximately 75 square kilometres in one of the world’s most prospective copper and iron ore belts.

The company reported multiple high-grade copper-gold intercepts from ongoing drilling at Boi Novo, including results exceeding 1.5% copper and associated gold credits. These results confirm both continuity and grade variability across structurally controlled mineralised zones at the Nelore West and Nelore East prospects.

While the system remains early to mid-stage in definition, the presence of repeated high-grade intercepts has strengthened investor perception that Boi Novo represents a potentially significant IOCG-style mineral system within the Carajás Province.

Rio Novo Emerges as Major Growth Catalyst

A key driver of the recent share price strength has been the emergence of Rio Novo as a high-priority exploration target area. The tenement, located immediately north of Boi Novo, has been the subject of initial surface geochemistry programs that have identified multiple large-scale copper-in-soil anomalies extending up to two kilometres in strike length.

These anomalies are particularly significant because they represent previously untested mineralised corridors within a largely unexplored extension of the Boi Novo system. Early exploration work has already outlined more than 2,000 soil samples, with over 900 assays returned to date, revealing multiple coherent geochemical trends aligned with structural and geological features favourable for copper-gold mineralisation.

Management has indicated that more than half of the Rio Novo tenure remains untested by modern exploration methods, highlighting the scale of exploration upside as systematic geophysics and further geochemical work continue. This includes drone magnetics and fixed-loop electromagnetic surveys designed to refine structural interpretation and generate drill-ready targets for the planned Q3 2026 campaign.

The market has responded positively to this pipeline of upcoming exploration activity, as it significantly expands the potential footprint of the broader Boi Novo–Rio Novo mineral system.

Continued Drill Success at Boi Novo Reinforces System Scale

At the Boi Novo Project, Centaurus continues to intersect copper-gold mineralisation across multiple drilling phases, with 56 holes completed for approximately 8,689 metres to date. Recent drilling has confirmed mineralisation continuity along a 500-metre structural corridor at the Nelore West Prospect, where semi-massive sulphide breccia zones continue to deliver consistent copper grades.

Reported intercepts include multiple zones above 1% copper, with associated gold values reinforcing the polymetallic nature of the system. While grade distribution remains variable due to the structurally controlled geology, the overall continuity of mineralisation has been a key Factor in improving market confidence in the project’s scale.

At the Nelore East Prospect, drilling has confirmed narrower but higher-grade copper-gold structures associated with conductive features identified through in-house Geophysical surveys. Although the system appears less continuous than Nelore West, it provides additional exploration upside within the broader mineralised corridor.

The combination of these two styles of mineralisation supports the interpretation of a complex but potentially extensive IOCG system, a deposit type that has historically underpinned large-scale copper production globally.

Metallurgical Results Support Development Potential

A further supportive factor in Centaurus’ recent re-rating has been positive metallurgical test work results from Boi Novo. Preliminary flotation testing demonstrated that a traditional copper-gold flotation flowsheet is capable of producing a high-grade concentrate exceeding 25% copper with strong recoveries.

The test work, conducted on a composite sample grading 1.20% copper and 0.1g/t gold, achieved copper recoveries of up to 95% and gold recoveries of approximately 60%. The resulting concentrate is consistent with material processed in nearby operations within the Carajás IOCG district.

These results are significant because they suggest that Boi Novo mineralisation is amenable to conventional processing routes, reducing technical complexity in potential future development scenarios. While additional metallurgical optimisation is ongoing, the early-stage success has strengthened investor confidence in the project’s processing viability.

Strategic Positioning in the Carajás Mineral Province

Centaurus’ Assets are located within the Carajás Mineral Province, widely regarded as one of the most prospective copper and iron ore regions globally. The company’s landholding benefits from proximity to established Mining infrastructure, including existing copper-gold processing facilities and transport corridors.

This infrastructure advantage has been an important factor in investor perception, as proximity to operational assets can materially reduce future development costs and timelines in potential mining scenarios. The combination of geological prospectivity and infrastructure access has positioned Centaurus as a notable exploration participant in the region.

Market Re-Rating Driven by Exploration Momentum

The move to a 52-week high reflects a broader re-rating trend often seen in exploration companies delivering consistent drill results in globally significant mineral provinces. In Centaurus’ case, the combination of expanding soil anomalies at Rio Novo, ongoing high-grade intercepts at Boi Novo, and encouraging metallurgical results has contributed to a sustained increase in market confidence.

At AUD 0.70, the stock’s performance highlights how strongly exploration success can influence valuation in the absence of production Revenue. Liquidity and sentiment also play a role, with increased trading activity amplifying price movements as new geological data emerges.

Importantly, the market appears to be increasingly focused on the potential scale of the broader mineral system rather than isolated drill results, reflecting a shift toward system-level valuation in early-stage copper-gold exploration companies.

Conclusion

Centaurus Metals’ rise to a 52-week high reflects strengthening investor confidence in its expanding copper-gold exploration system across the Boi Novo and Rio Novo projects in Brazil’s Carajás Mineral Province. The combination of high-grade drill results, large-scale soil anomalies, and positive metallurgical test work has reinforced the company’s position as a key exploration story within a globally significant copper region.

While the projects remain at an exploration stage and require further drilling and technical validation, the growing scale of the mineral system and the emergence of multiple target zones have contributed to a clear re-rating in market perception. The upcoming phase of drilling at Rio Novo is expected to be a critical period in defining the next stage of exploration outcomes for the company.