Proven and Probable mineral reserve estimates

Category Property Tonnes
(kt)
Gold grade
(g/t)
Silver grade
(g/t)
Contained gold
(koz)
Contained silver
(koz)
Proven Marmato 802 5.10 22 133 569
Probable Marmato 18,898 3.10 6 1,888 3,780
Probable Soto Norte 4,953 6.22 34 990 5,477
Proven Segovia 204 12.00 - 79 -
Probable Segovia 2,087 9.93 - 666 -
Total         3,756 9,826

Notes: Totals may not add due to rounding. Mineral reserve estimates for Soto Norte represent the portion of mineral reserves attributable to Aris Mining based on its 20% ownership interest. Mineral reserves were estimated using a gold price of USD$1,400 per ounce at Marmato, USD$1,300 per ounce at Soto Norte, and USD$1,650 per ounce at Segovia. The mineral reserve effective dates are March 17, 2020 for Marmato, January 1, 2021 for Soto Norte, and December 31, 2021 for Segovia. This disclosure of mineral reserve estimates has been approved by Pamela De Mark, P. Geo, Vice President Exploration of Aris Mining, who is a Qualified Person as defined by National Instrument 43-101.

Measured and Indicated mineral resource estimates

Category Property Tonnes
(Mt)
Gold grade
(g/t)
Silver grade
(g/t)
Contained gold
(koz)
Contained silver
(koz)
Measured Marmato 2.8 6.20 28 562 2,561
Indicated Marmato 54.0 3.00 7 5,245 11,285
Indicated Soto Norte 9.6 5.47 36 1,691 11,065
Measured Segovia 0.5 14.01 - 208 -
Indicated Segovia 4.1 10.65 - 1,412 -
Measured Toroparu 110.9 1.26 - 4,479 -
Indicated Toroparu 74.1 1.66 - 3,958 -
Indicated Juby 21.3 1.13 - 733 -
Total         18,288 24,911

Notes: Mineral resources are not mineral reserves and do not have demonstrated economic viability. Mineral resource estimates are reported inclusive of mineral reserves. Totals may not add due to rounding. Mineral resource estimates for Soto Norte represent the portion of mineral resources attributable to Aris Mining based on its 20% ownership interest. Mineral resources were estimated using a gold price of USD$1,600 per ounce at Marmato, USD$1,300 per ounce at Soto Norte, USD$1,800 per ounce at the Segovia Property, USD$1,630 at Toroparu, and USD$1,450 per ounce at Juby. The mineral resource effective dates are June 30, 2021 for Marmato, May 29, 2019 for Soto Norte, December 31, 2021 for Segovia, November 1, 2021 for Toroparu, and July 14, 2020 for Juby. This disclosure of mineral resource estimates has been approved by Pamela De Mark, P. Geo, Vice President Exploration of Aris Mining, who is a Qualified Person as defined by National Instrument 43-101.

Inferred mineral resource estimates

Property Tonnes
(Mt)
Gold grade
(g/t)
Silver grade
(g/t)
Contained gold
(koz)
Contained silver
(koz)
Marmato 30.8 2.60 3 2,567 3,282
Soto Norte 5.5 4.06 26 714 4,551
Segovia 5.3 9.91 - 1,704 -
Toroparu 13.8 2.74 - 1,213 -
Juby 47.1 0.98 - 1,488 -
Total       7,686 7,833

Notes: See slide 17 for technical information.

Technical disclosure

Technical reports

Technical reports for Marmato, Soto Norte and Juby have been filed with the Canadian securities regulatory authorities and are available for review on Aris Mining’s website at www.aris-mining.com and on the profile of Aris Mining Corporation on SEDAR at www.sedar.com. Technical reports for Segovia and Toroparu have been filed with the Canadian securities regulatory authorities and are available for review on GCM’s website at www.gcm-mining.com and on the profile of GCM Mining Corp. on SEDAR at www.sedar.com. These reports confirm that the qualified persons responsible for the preparation of the technical reports have verified the data disclosed, including drilling, sampling, assaying, and QAQC protocols and results, and are of the opinion that the sample recovery, preparation, analyses, and security protocols used for the mineral resource estimates are reliable for that purpose.

Scientific and technical information concerning Marmato is summarized, derived, or extracted from the Marmato Technical Report entitled "Revised NI 43-101 Technical Report Pre-Feasibility Study Marmato Project Colombia" dated September 18, 2020 with an effective date of March 17, 2020. The Marmato Technical Report was prepared by Ben Parsons, MSc, MAusIMM (CP), Eric J. Olin, MSc Metallurgy, MBA, SME-RM, MAusIMM, Fernando Rodrigues, BS Mining, MBA, MAusIMM, MMSAQP, Jeff Osborn, BEng Mining, MMSAQP, Joanna Poeck, BEng Mining, SME-RM, MMSAQP, Fredy Henriquez, MS Eng, SME, ISRM, Breese Burnley, P.E., Cristian A Pereira Farias, SME-RM, David Hoekstra, BS, PE, NCEES, SME-RM, David Bird, PG, SME-RM, Mark Allan Willow, MSc, CEM, SME-RM, and Tommaso Roberto Raponi, P.Eng, each of whom is independent of Aris Mining within the meaning of NI 43-101 and is a "Qualified Person" as such term is defined in NI 43-101.

Scientific and technical information concerning Soto Norte is summarized, derived, or extracted from the Soto Norte Technical Report entitled “NI 43-101 Technical Report Feasibility Study of the Soto Norte Gold Project, Santander, Colombia”, dated March 21, 2022 with an effective date of January 1, 2021. The Soto Norte Technical Report was prepared by Ben Parsons, MSc, MAusIMM (CP), Chris Bray, BEng, MAusIMM (CP), and Dr John Willis PhD, BE (MET), MAusIMM (CP), and Dr Henri Sangam, Ph.D., P.Eng., each of whom is independent of Aris Mining within the meaning of NI 43-101 and is a “Qualified Person” as such term is defined in NI 43-101. The report was also prepared by Robert Anderson, P.Eng., a Qualified Person who is considered non-independent of Aris Mining.

Scientific and technical information concerning Juby is summarized, derived, or extracted from the Juby Technical Report entitled "Technical Report on the Updated Mineral Resource Estimate for the Juby Gold Project, Tyrell Township, Shining Tree Area, Ontario" dated October 5, 2020 with an effective date of July 14, 2020. The Juby Technical Report was prepared by Joe Campbell, B.Sc., P.Geo., Alan Sexton, M.Sc., P.Geo., Duncan Studd, M.Sc., P.Geo. and Allan Armitage, Ph.D., P.Geo., each of whom is independent of Aris Mining within the meaning of NI 43-101 and is a "Qualified Person" as such term is defined in NI 43-101.

Scientific and technical information concerning Segovia is summarized, derived, or extracted from the Segovia Technical Report entitled "NI 43-101 Technical Report, Prefeasibility Study, Segovia Project, Antioquia, Colombia" dated May 6, 2022 with an effective date of December 31, 2021. The Segovia Technical Report was prepared by Ben Parsons, MSc, MAusIMM (CP), Eric Olin, MSc, MBA, MAusIMM, SME-RM, Cristian A. Pereira Farias, SME-RM, David Bird, MSc, PG, SME-RM, Fredy Henriquez, MS Eng, SME, ISRM, Jeff Osborn, BEng Mining, MMSAQP, Fernando Rodrigues, BS Mining, MBA, MAusIMM, MMSAQP, Giovanny Ortiz, BS Geology, FAusIMM, Joshua Sames, PE, BEng Civil, Mark Allan Willow, MSc, CEM, SME-RM, and Jeff Parshley, P.G., each of whom is independent of GCM within the meaning of NI 43-101 and is a "Qualified Person" as such term is defined in NI 43-101.

Scientific and technical information concerning Toroparu is summarized, derived, or extracted from the Toroparu Technical Report entitled "Revised NI 43-101 Technical Report and Preliminary Economic Assessment for the Toroparu Gold Project, Upper Puruni River Region of Western Guyana" dated February 4, 2022 with an effective date of December 1, 2021. The Toroparu Technical Report was prepared by Glen Kuntz, P. Geo., Brian Wissent, P.Eng, Daniel Yang, P.Eng, Ben Peacock, P.Eng, Kurt Boyko, P.Eng, Fernando Rodrigues, MMSAQP, and David Willms, P.Eng, each of whom is independent of GCM within the meaning of NI 43-101 and is a "Qualified Person" as such term is defined in NI 43-101.

 

Qualified person

The technical information in this presentation was reviewed and approved by Pamela De Mark, P.Geo, Senior Vice President of Technical Services of Aris Mining, who is a Qualified Person as defined by NI 43-101.