Granite Creek Copper Ltd V.GCX

Granite Creek Copper Retains SGS Canada

[Betteryear2]

VANCOUVER, BC / ACCESSWIRE / May 3, 2022 / Granite Creek Copper Ltd. (TSXV:GCX)(OTCQB:GCXXF) ("Granite Creek" or the "Company") is pleased to announce that it has retained SGS to complete an updated Preliminary Economic Assessment ("PEA") on the Carmacks project. The PEA will use the 2022 Resource Estimate (Table 1), consisting of 36.2 million tonnes (Mt) in Measured and Indicated categories (M&I), grading 1.07% CuEq (0.81% Cu, 0.26g/t Au, 3.23g/t Ag and 0.011% Mo) for a total of 651 million pounds (Mlbs) of contained M&I copper and an additional 38 Mlbs Cu Inferred as the main input. Building off a 2017 PEA(1), the updated study will encompass the following:

• Significant Increase in Contained Copper - The 2022 resource estimate marked a 43% increase in contained copper over the previous estimate referenced(2)
• Inclusion of Sulphide Processing - As of the publication of the 2022 resource estimate the Carmacks project consists of roughly 50/50 sulfide and oxide resources by contained metal. The Company sees the inclusion of sulphide resources as a significant potential value driver having a positive impact on the economics of the project; and
• High Proportion of Resources Modeled in Three Conceptual Open Pits - 96% of the 2022 resources are contained within the conceptual pits (Figure 1). With a high percentage of current resources reporting in conceptual pits the cash cost per pound of copper is expected to be significantly lower when compared to a similar sized underground operation.

Granite Creek Copper Retains SGS Canada for Updated Preliminary Economic Assessment on High-Grade Carmacks Copper-Gold-Silver Project in Yukon Canada