Frequently Asked Questions

Cosigo Resources Ltd. is a junior gold exploration company listed on the TSX Venture Exchange (TSXV: CSG) and the OTCQB Venture Market (OTCQB: COSRF). It is advancing the Taraira Gold Belt in the Taraira District, Vaupés, and also holds the Willow Creek property in Nevada, the Damian property, and a 13.26% interest in DHK Diamonds Inc.

Cosigo Resources trades on the TSX Venture Exchange under the symbol CSG and on the OTCQB Venture Market in the United States under the symbol COSRF. The Company graduated from the NEX board to the TSX Venture Exchange in May 2025 and uplisted to the OTCQB in March 2026.

The Taraira Gold Belt lies in the Taraira District of the Vaupés region in south-east Colombia, near the border with Brazil. Cosigo Resources holds title covering a ridge system in this district, with its Machado Project (Taraira North) as the current focus of drilling and prospecting.

They are nested names. The Taraira Gold Belt is the gold district around the town of Taraira in southern Vaupés, Colombia. Cosigo Resources' Machado Project is its concession within that belt — IH3-16001X, 9,973 hectares, about 4.5 km west of Taraira. The concession includes Taraira North (Cerro Rojo, Peladero and Mata de Aji) and Taraira South (Cerro Piedra and Cerro Bomba); since 2020 Cosigo's work has focused on Cerro Rojo, and the 2024 technical report refers to the property as "Machado (aka Taraira North)".

No. Cosigo Resources is an exploration-stage company and has not defined a mineral resource or mineral reserve under National Instrument 43-101. Its NI 43-101 technical reports (2011, and an amendment with effective date August 8, 2024) are exploration-stage reports, and the 2024 report states there are no mineral resource estimates for any part of the Machado Project. Results reported to date are exploration results, including channel sampling, reverse-circulation and core drilling, and gravity concentration testwork.

As of its August 24, 2026 drilling update, Cosigo Resources had completed holes 26, 27 and 28 at its Taraira (Machado) project in the Vaupés region of Colombia, each to about 140 metres — deeper than any hole in its 2013 program. Core from those holes was being prepared and shipped to a laboratory in North Vancouver, Canada, with results expected in 6 to 12 weeks; hole 29 was under way and hole 30 was to follow. The new holes build on Cosigo's 2013 program of 20 reverse-circulation holes, which returned intercepts including 3.04 m at 17.19 g/t Au (13MR007) and 13.72 m at 2.53 g/t Au (13MR018), down-hole widths. The status of every hole is at cosigo.com/historical-work#current-drilling.

Yes. Cosigo Resources has two NI 43-101 technical reports on its Machado Project in the Vaupés region of Colombia: "Technical Report, Machado Project, Vaupés Department, Colombia" by Raymond M. Ashley, P.Geoph., dated January 16, 2011, and "Amendment to Technical Report — Machado Project" by Erik A. Ostensoe, P.Geo., with effective date August 8, 2024. Both are published as PDFs at cosigo.com/historical-work and filed on SEDAR+.

Cosigo Resources has worked in the Taraira district since 2005, when Andy Rendle, now President & COO, filed the prospecting licence applications; the concession was granted in 2007. Since then the Company has completed about 6,000 MMI soil samples (2008–2011), bulk sampling and Knelson gravity tests (2010), an NI 43-101 technical report (2011), a 20-hole reverse-circulation drill program (2013), an updated NI 43-101 technical report (2024), and renewed drilling that continues in 2026.

Yes. Gold at Cosigo Resources' Taraira North (Machado) project in Vaupés, Colombia, is coarse and nuggety, and several lines of evidence show a nugget effect. In 2010 two channel samples assayed 0.73 and 0.98 g/t Au, while the bulk sample blasted from the same face returned calculated head grades of 27.2 and 37.6 g/t Au. On 2013 RC samples assayed both ways, screen-fire assays totalled about 22–25% more gold than routine fire assays, and in gold-bearing intervals the coarse screen fraction — only 2–3% of sample weight — carried up to 83% of the gold. Conventional small-aliquot fire assay grades at Taraira are therefore treated as a probable floor rather than a reliable estimate.

Laboratory tests show gold from Cosigo Resources' Taraira North (Machado) project is highly amenable to gravity concentration. In the July 2010 Knelson test on 617 kg of tunnel rock from Agamenon's adit at Cerro Rojo, gravity alone recovered 91.5% and 84.4% of the gold from two sub-samples (about 88% on average), at calculated head grades of 37.6 and 27.2 g/t Au. A March 2010 test on vein rock from the Chile Bajo adit recovered 67.9–70.7%, and a 2026 test on a low-grade surface sample of conglomerate put 64.9% of the gold in the Knelson concentrate. These are laboratory-scale exploration results, and gravity recovery has not yet been tested at other target areas.

On April 7, 2026 Cosigo Resources reported Knelson gravity and metallics screen testing on a 60 kg composite of conglomerate from surface outcrops south of its Taraira camp. The composite graded 0.03 g/t Au, and 64.9% of its gold reported to the Knelson gravity concentrate. It was a metallurgical test of how the gold in that material responds to gravity concentration — not a drill result, and not an estimate of grade for the Taraira project, where no mineral resource has been defined. The conglomerate's informal "Chicken Coop" (Gallinero) name comes from two short test holes drilled near the camp tool shop, sited for convenience while testing the Company's drill rather than for geological potential. Cosigo's drill results are separate: its 2013 program returned intercepts including 3.04 m at 17.19 g/t Au, and assays for 2026 holes 26 to 28 were pending as of August 24, 2026.

Erik Ostensoe, P.Geo., a geological consultant to the Company and a Qualified Person as defined by National Instrument 43-101, reviews and approves the scientific and technical disclosure in Cosigo Resources news releases.

Investor and media enquiries go to Andy Rendle, President & COO, at andy@cosigo.com. General enquiries go to info@cosigo.com. The head office is in Victoria, British Columbia, Canada.