Rosa Ventures, a mineral exploration company focused on advancing base metal projects in Chile, will host a technical deep dive session with its Chief Exploration Geologist as the company prepares for its public listing on the TSX Venture Exchange.

The session, titled Rosa Ventures | Unearthing the Future: Inside Rosa Ventures’ Exploration Strategy, is hosted by Red Cloud Media and will take place on January 21, 2027, from 1:00 PM to 2:00 PM.

It will cover the company’s project portfolio, the exploration strategy guiding its work, and the technical and operational foundations being established to support long-term growth. The discussion is intended to give investors and industry participants a clear view of how Rosa Ventures is building its exploration platform in Chile and aligning its technical approach with its upcoming public listing.

Project Portfolio

Rosa Ventures’ portfolio is centered on district-scale copper porphyry projects in northern Chile, positioned within established mining belts that host some of the world’s largest copper operations. 

San Lázaro

The San Lázaro porphyry Cu-Au (Mo) project is located in the Upper Eocene-Oligocene porphyry copper belt of northern Chile, approximately 15 km south of the Collahuasi mining district. The property covers roughly 1,600 hectares of exploration concessions, sits at an elevation of about 4,000 m, and is accessible year-round, approximately four hours by road from Calama.

The area was previously explored by Codelco and Asarco in the 1990s, which conducted reverse-circulation scouting drilling as part of district-scale work. In 2015, Rio Tinto completed an extensive IP survey over the post-mineral gravel and ignimbrite cover south of the Ujina deposit. The survey identified chargeability anomalies that were subsequently drill-tested. One of these targets, known as Yuma, lies entirely within the San Lázaro concessions and is covered by approximately 100 m of semi-consolidated gravel. Ten diamond drill holes totaling 4,725 m tested a 3 × 2 km chargeability anomaly and returned intervals exceeding 100 m grading around 0.15% Cu and 0.12 g/t Au. This mineralization was interpreted as hosted in propylitically altered Cretaceous volcanic rocks and a phyllic-altered Paleozoic porphyry system of limited economic interest at the time.

Reinterpretation of the historical data within the well-documented relationship between Paleozoic and Tertiary porphyry systems in the Collahuasi district (observed at Quebrada Blanca, Rosario, Ujina, and other prospects) has outlined a large undrilled Tertiary porphyry Cu-Au (Mo) target beneath the shallow post-mineral cover within the San Lázaro concessions.

Polanco

The Polanco porphyry Cu-Au project is located in the Paleocene metallogenic belt of northern Chile, approximately 115 km east of the port of Iquique and 23 km northeast of BHP’s Cerro Colorado copper mine. The property covers roughly 2,800 hectares at an elevation of about 3,700 m and is accessible year-round, approximately two and a half hours by road from Iquique.

Previous work by Teck (2018) outlined a 2 × 1 km alteration system zoned from potassic-altered dacitic porphyry to phyllic-altered Jurassic sandstones. Age dating returned Paleocene ages (K-Ar 65.5–56.5 Ma; U-Pb zircon 52.6 Ma) consistent with Cerro Colorado, while zircon chemistry indicated fertile magmas. Subsequent work by Torino Metals (2022) identified a leached hydrothermal breccia cutting the potassic porphyry, confirmed that approximately 83% of relict sulfides in early A-type quartz veins are chalcopyrite (with minor bornite, chalcocite and covellite), and defined a ~2 km semi-circular magnetic anomaly interpreted as the potassic core, largely covered by post-mineral volcanic rocks. Surface sampling returned up to 0.84 g/t Au and 851 ppm Cu, predominantly within partially leached potassic zones.

The project is interpreted as a partially leached and oxidized inter-mineral porphyry Cu-Au system with limited pyrite, suggesting limited potential for a secondary enrichment blanket and a higher probability of disseminated hypogene chalcopyrite-bornite mineralization at depth. The size of the magnetic anomaly indicates room for a multi-hundred-million-tonne system. The project is considered drill-ready, with an initial program of five diamond drill holes totaling approximately 2,000 m previously designed.

Current and future shareholders are invited to register for the webinar to gain a clearer understanding of the geology, the technical team, and the capital structure supporting Rosa Ventures as it advances its Chilean portfolio and prepares for listing on the TSX Venture Exchange. The session will provide an opportunity to hear directly from the company’s Chief Exploration Geologist and to learn more about the strategy and foundations being put in place for long-term growth.

Registration is open. Interested participants can register

About Rosa Ventures

Rosa Ventures is a junior mineral exploration company advancing base metal projects in the Andes.