GCM Mining Announces Updated Mineral Resource Estimate and Positive Preliminary Economic Assessment for Its Toroparu Project in Guyana
Updated Mineral Resource Estimate of 8.4 Mozs Measured and Indicated Gold Resource at 1.42 g/t and 396 Mlbs Measured and Indicated Copper Resource at 0.1% in 185 million tonnes of rock Preliminary Economic Assessment estimates: 280,000 ozs of gold production in the first year of operation in 2024; 5.4 Mozs of gold, 2.5 Mozs of silver and 141.3 Mlbs of copper produced over a 24-year mine life; US$8.0 billion total revenue, US$3.5 billion operating margin and US$1.7 billion after-tax Free Cash Flow at a US$1,500/oz gold price; and, After-tax net present value (5%) of US$794 million with an after-tax IRR of 46% and two-year payback. Initial US$355 Million capex to construct the Toroparu Project is fully funded.

GCM Mining Corp. (the “Company”) (TSX: GCM, OTCQX: TPRFF) announced today that it has completed an updated Mineral Resource estimate for its Toroparu Project in Guyana with an effective date of November 1, 2021 and in accordance with the Canadian Institute of Mining Metallurgy and Petroleum (“CIM”) Definition Standards incorporated by reference in National Instrument 43-101 – Standards of Disclosure for Mineral Projects (“NI 43-101”). GCM Mining also announced today that Nordmin Engineering Ltd. (“Nordmin”) and SRK Consulting (U.S.), Inc. (“SRK”) have completed preliminary results of a Preliminary Economic Assessment (“PEA”) for the Toroparu Project effective November 26, 2021 and is currently finalizing the technical report to be prepared in accordance with NI 43-101 and filed on SEDAR and the Company’s website in mid-January 2022.