Warintza Project In-Pit Mineral Resources Including Higher Grade Mineralization

VANCOUVER - Solaris Resources Inc. reported an In-Pit Mineral Resources Estimate (MRE) for its Warintza Project in southeastern Ecuador. Ongoing mineral resource drilling includes over 30,000m in H2/24 targeting open extensions and upgrading mineral resources to support the Pre-Feasibility Study (PFS) in H2/25. Concurrent district exploration programs are targeting complementary discoveries from an expanded portfolio of epithermal gold/silver and porphyry copper targets.

In-Pit Mineral Resources – 232 million tonnes (Mt) at 0.64% copper equivalent (CuEq) (Measured) and 677 Mt at 0.49% CuEq (Indicated) for 909 Mt at 0.53% CuEq¹ (Measured & Indicated) and an additional 1,426 Mt at 0.37% CuEq (Inferred) at a base case 0.25% CuEq cut-off grade. Includes 157 Mt at 0.76% CuEq (Measured) and 269 Mt at 0.69% CuEq (Indicated) for 427 Mt at 0.71% CuEq¹ (Measured & Indicated) and an additional 177 Mt at 0.62% CuEq (Inferred) at a higher cut-off grade of 0.50% CuEq which reflects the at or near surface supergene and higher-grade hypogene mineralization.Structural Advantages – Warintza is set at low elevation within the southeast Ecuador mining district that is serviced by direct connection from highway to Pacific ports, low-cost hydroelectric grid power with further development potential at the adjoining Santiago G8 project, and has seen sweeping socioeconomic improvement from mining exploration, development over the last decade.

Resource Drilling Continues – 2024 drill program of 60,000m (over 30,000m in H2/24) in 140 holes from 80 platforms to provide improved drilling coverage targeting open lateral extensions, upgrading mineral resources and converting remaining uncategorized blocks within the pit shell to support the PFS in H2/25; metallurgical, geotechnical and hydrogeological drilling is ongoing. District Exploration Ongoing – Complementary district exploration efforts are underway with fieldwork targeting epithermal-style gold-silver mineralization south of Caya-Mateo, in an area where recent sampling has returned values between 4 and 12 g/t Au, and field crews also focused on mapping and sampling combined geophysical and geochemical porphyry copper targets.

Javier Toro, Chief Operating Officer, said, “We are very pleased to be able to release this standalone MRE which draws on our combined years of experience with open pit copper projects in the Americas. This new MRE provides a solid foundation for future updates and a robust mine plan with a low strip ratio, simple metallurgy and clean concentrates. In support of the PFS, we are doing further technical, infill and extensional drilling into open areas within and adjacent to the pit shell.”