The Mineral Resource data presented in the tables included in this document comprise a summary extract for the Mineral Resource reports for all the Group’s properties. Numbers have been rounded and therefore there may be small differences in the totals. Varying cut-off grades have been clearly stated.

The Mineral Resources were estimated using a gold price assumption of US$2,000/oz at Sukari Gold Mine in Egypt and to a maximum vertical depth of 250 metres at both the Doropo Project and ABC Projects in Côte d’Ivoire.

The significant figures used in the table are intended to reflect the level of accuracy of the different resource classifications reported; figures in the table may not add correctly due to rounding.

Sukari Gold Mine only

The Mineral Reserve data presented in the tables included in this document, comprise a summary extract for the Sukari Gold Mine Mineral Reserve report. Currently all the Mineral Reserves are contained within the Sukari tenement. For comparative purposes, data for 2020 has been included. Numbers have been rounded and therefore there may be small differences in the totals.

Included in the Mineral Resources, the Mineral Reserves at 30 June 2021 were 5.8 million ounces of gold. The increase, net of six months depletion, from 2020 is attributable to significant Mineral Resource to Mineral Reserve conversion within the underground, and changes in the open pit design. The gold price assumption used for estimating Mineral Reserves is unchanged at US$1,450 per ounce. Based on the expected throughput rates, the remaining Mineral Reserve life of Sukari open pit operation and stockpiles is approximately 12 years, including approximately 8 years for the underground, as of 30 June 2021.

Mineral Resource Notes

All open-pit Mineral Resources are estimates of recoverable tonnes and grades using Multiple Indicator Kriging with block support correction produced in the GS3 software.

All underground Mineral Resources are estimated using Ordinary Kriging using Surpac software.

• Sukari Open Pit
  • All open-pit Mineral Resources are estimates of recoverable tonnes and grades using Multiple Indicator Kriging with block support correction produced in the GS3 software.
  • Measured Resources lie in areas where drilling is available at a nominal 25 x 25 metre spacing, Indicated resources occur in areas drilled at approximately 25 x 50 metre spacing and Inferred resources exist in areas of broader spaced drilling.
  • The open-pit MRE at a 0.3 g/t Au cut-off grade extends over a strike length of 2.5 kilometres, a width of 500 m and from current surface to a depth of ~900 m.
  • The open-pit MRE used all available surface drilling, channel and chip samples as at 18 July 2019, and longer underground production holes were also included. The open-pit resource data set comprised 389,856 two-metre drill hole composites and surface rock chip samples.
  • H&SC has checked the drilling completed between July 2019 and December 2020 and considers that this data is unlikely to have a significant impact globally, although some local differences are expected.
  • The MRE was adjusted to the mining surface and underground mining voids as at the 30 June 2021.
• Sukari Underground
  • All underground Mineral Resources are estimated using Ordinary Kriging using Surpac software.
  • Measured Resources lie in areas where drilling is available at least 20 x 20 metre spacing and the interpreted mineralisation defined by underground mine development. Indicated resources occur in areas drilled at approximately 20 x 20 metre spacing and Inferred Resources exist in areas of broader spaced drilling of approximately 50 x 50 metre spacing.
  • The underground Mineral Resource estimate at a 1.0 g/t Au cut-off grade extends over a strike length of 2.5 kilometres, a width of ~500 m and from current surface to a depth of 1,200 m.
  • All available surface drilling, channel and underground samples were used as at 31st August 2020. The resource data set used directly in the Mineral Resource Estimate comprised a total of 68,202one metre down hole drilling composites and 53,970 one metre down hole channel sample composites.
  • The Mineral Resource Estimates were adjusted to the mining surface and underground mining voids as at end of December 2020.
• Doropo Project
  • The estimation method is Ordinary Kriging using dynamic anisotropy and Local Uniform Conditioning
  • Classifications of Indicated and Inferred has been based primarily on the estimation quality parameters, including the quality of the domain variograms, the conditional bias slope and average distance to informing data
  • The reported estimates are limited to blocks with a maximum depth of 250 metres below surface and within 80 metres of drill hole data
  • All available data was used as at 31 October 2020
  • A cut-off grade of 0.5 g/t gold is used for reporting as it is believed that the majority of the reported resources can be mined at that grade
• ABC Project
  • Mineral resources which are not mineral reserves do not have demonstrated economic viability.
  • The ABC resource estimate comprises two (2) deposits – Kona South & Kona Central.
  • Drill spacing is a nominal 50 x 50 x 1 metre spacing.
  • Reverse Circulation (RC) and Diamond (DDH) drilling only has been used for the estimation.
  • An OK and LUC estimation using IK at Kona Central to define ore and waste boundaries.
  • The grade estimate has been classified as Inferred in accordance with the CIM 2014 guidelines.
  • The Updated Mineral Resource has been reported at an economic cut-off grade of 0.5g/t, 250m below surface and within 100 metres of the nearest sample.
  • This Updated Mineral Resources Estimate was prepared by Mr. Patrick Adams of Cube Consulting who represents the Qualified Person for the estimate.
  • This Updated Mineral Resources Estimate is not expected to be materially affected by environmental, permitting, legal title, taxation, socio-political, marketing or other relevant issues.
• The Doropo and ABC resource data sets include RC and Diamond drill data with gold estimates based on 50-gram Fire Assay analysis completed at Bureau Veritas Mineral Laboratories, Abidjan.
• Batie West Project
  • The open pit Mineral Resources are estimates of recoverable tonnes and grade using Multiple Indicator Kriging with block support correction produced using GS3 software
  • Indicated resources occur in areas drilled at approximately 25 x 50 metre spacing and Inferred resources exist in areas of broader spaced drilling
  • The reported open pit Mineral Resource estimate is restricted to a US$1,900/oz pit shell and reported using a 0.5 g/t gold cut-off grade. The reported Mineral Resource extends over a strike length of approximately 5.2km, a width of 480 metres and extends to a depth of 310 metres
  • All available Reverse Circulation and Diamond drilling samples were used as at 1 January 2020. The resource data set comprised 106,738 two-metre down hole composite samples.
  • All available data was used as at 1st April 2020.

Reserve Notes

• Open pit and stockpiles cut-off grade for reporting of 0.4g/t
• Open pit Mineral Reserve estimate includes 4.9Mt at 0.4g/t for 0.1Moz gold, using a 0.2g/t cut-off, for the dump leach
• Underground cut-off grade for reporting of 0.4g/t gold for development with stopes defined within a 2.2g/t gold cut-off

Information of a scientific or technical nature in this document, including but not limited to the mineral reserve and resource estimates, was prepared by and under the supervision of Group Qualified Person(s) and independent Qualified Person(s) as below:   

Sukari Gold Mine, Egypt

• Mineral Reserve (open pit) - Quinton de Klerk of Cube Consulting Pty Ltd
• Mineral Reserve (underground) - Adrian Ralph of Cube Consulting Pty Ltd
• Mineral Resource (open pit) - Arnold van der Heyden of H&S Consultants Pty Ltd
• Mineral Resource (underground) - Mark Zammit of Cube Consulting Pty Ltd

Doropo Project, Côte d’Ivoire

• Richard Adams of Cube Consulting Pty Ltd  

ABC Project, Côte d’Ivoire

• Rupert Osborn of H&S Consultants Pty Ltd

Batie West Project, Burkina Faso

• Craig Barker of Centamin plc

A “Qualified Person” is as defined by the National Instrument 43-101 of the Canadian Securities Administrators. The named Qualified Person(s) have verified the data disclosed, including sampling, analytical, and test data underlying the information or opinions contained in this announcement in accordance with standards appropriate to their qualifications. Each Qualified Person consents to the inclusion of the information in this document in the form and context in which it appears.

Investors should be aware that the figures stated are estimates and no assurances can be given that the stated quantities of metal will be produced.

Mineral Resource Estimates contained in this document are based on available data as at:

• Sukari Gold Mine - 31 July 2021
• Doropo Project - 31 October 2020
• ABC Project - 10 December 2018
• Batie West Project - 1 January 2020

H&S Consultants PTY Ltd completed the open pit MIK MRE for Sukari as at the end of June 2019. The estimates are reported below the end of June 2019 mined surface and within a pit shell generated by Cube Consulting using a nominal gold price of US$1900/oz. A cut-off grade of 0.3 g/t gold is used for reporting the open pit MRE because this is the nominal economic open-pit cut-off grade used at the Sukari mine.

Cube Consulting Pty Ltd (Cube) completed the estimation of the Sukari Gold Mines Underground Mineral Resource as at the end of June 2019. All UG mineral resources defined below the USD $1,900/oz shell are estimated using the economic underground cut-off grade of 2.0 g/t and are combined with the open pit MRE to provide a global MRE for Sukari. The global mineral resource estimate includes the underground resource estimate.

Varying cut-off grades have been used, and clearly marked, for calculating the mineral resource estimates at different Group properties, depending on the stage of project, maturity and ore type.