Investor Presentaiton

29 M 1. 2. 4,000 Mammoth & Greenstone Long-Section1 Mammoth NE - potential future ore source Mineral Resources estimate outline (31 Dec 2022) Open Areas Newly identified Mineralisation 5,000 Envelope Drilled holes Current Announcement Drilled holes broad mineralised zone Drilled holes - Strong mineralisation 4,500 Base of underground development L Local Grid East Untested Mammoth Portal Fault 200m Untested UDMAM22_104 103.0m @ 1.2% Cu, 4g/t Ag. 67 ppm Co, from 493m Including 34.8m @ 1.7% Cu, 7g/t Ag, 131ppm Co, from 561.2m UDMAM22_110 Greenstone 4,500 Historically untested area now a sizeable exploration opportunity ■ Broad intersections of high-grade copper:² 34.8m @ 1.7% Cu, 7g/t Ag, 131ppm Co within 103.0m @1.2% Cu, 4g/t Ag and 67ppm Co (UDMAM22_104) 36.0m @ 3.9% Cu, 6g/t Ag, 188ppm Co within 228.0m @ 1.2% Cu, 3g/t Ag and 50ppm Co (UDMAM22_110) ■ Discovery drilling recommenced in Dec-Qtr 2023 228.0m @ 1.2% Cu, 3g/t Ag, 50ppm Co, from 427m Including 4,000 36.0m @ 3.9% Cu, 6g/t Ag, 188 ppm Co, from 427m 50 0 50 100 150 200 250 Mineral Resources estimates for Mammoth and Greenstone are a subset of, and included in, 29Metals' Mineral Resources estimates for Capricorn Copper. Refer to important information at the beginning of this presentation regarding 29Metals' Mineral Resources and Ore Reserves estimates. Refer to "Exploration Update - Capricorn Copper" released to the ASX announcements platform on 12 April 2023 (a copy of which is available on 29Metals' website at: https://www.29metals.com/investors/asx-announcements) for further information information regarding these drilling results, including Competent Persons statements and JORC Code table 1 disclosures. 15

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