N S Wassa 19500N 19300N 19100N 18900N Main Pit F Shoot B - - PowerPoint PPT Presentation

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N S Wassa 19500N 19300N 19100N 18900N Main Pit F Shoot B - - PowerPoint PPT Presentation

Dec 30, 2022 410 likes •490 views

Wassa Inferred Resource Update Isometric View Looking East N S Wassa 19500N 19300N 19100N 18900N Main Pit F Shoot B Shoot mined mined stopes stopes Planned stopes BS17DD315M BS17DD389M Updated Inferred Mineral Resource

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SLIDE 1

1 NYSE: GSS TSX: GSC

Wassa Inferred Resource Update– Isometric View Looking East

19500N 19300N 19100N 18900N 400 m BS17DD385D3 BS17DD315M F Shoot mined stopes Planned stopes Wassa Main Pit

N S

B Shoot mined stopes BS17DD388M BS17DD389M Updated Inferred Mineral Resource (44.9Mt at 3.6 g/t Au for 5.2Moz)

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SLIDE 2

2 NYSE: GSS TSX: GSC

Wassa Underground Drill Plan View

B Shoot stopes F Shoot stopes Decline 19500N 19300N 19100N 18900N F Shoot Projection B Shoot Projection 200m

N

Planned stopes Updated Inferred Mineral Resource (44.9Mt at 3.6 g/t Au for 5.2Moz)

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SLIDE 3

3 NYSE: GSS TSX: GSC

Wassa Underground – Isometric View Looking North

W E

B Shoot stopes F Shoot stopes Decline F Shoot Projection B Shoot Projection Planned stopes

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SLIDE 4

4 NYSE: GSS TSX: GSC

B Shoot South Drilling: 19500

BSDD347 22.6m @ 4.2 g/t Au BSDD290BD1 25.4m @ 8.3 g/t Au

19500N

BSDD347 No significant intersections BSDD351 No significant intersections

W E

BSDD290B 19.0m @ 6.9 g/t Au

19500N

  • Two

additional holes used in Inferred Mineral Resource estimate: BSDD347 (Bottom) & BSDD351 (Bottom)

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SLIDE 5

5 NYSE: GSS TSX: GSC

19300N

  • Two

additional holes used in Inferred Mineral Resource estimate: BSDD308M (Bottom) & BS17DD386M

B Shoot South Drilling: 19300 N

BSDD308M 23.7m @9.6 g/t Au BSDD308D1 13.4m @ 6.0 g/t Au BSDD295M 26.3m @ 2.9 g/t Au

19300N

BSDD308M 7.4 m @3.1 g/t BS17DD386M 6.4 m @ 3.2 g/t Au

W E

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SLIDE 6

6 NYSE: GSS TSX: GSC

B Shoot South Drilling: 19100N

BSDD315M 70.5m @ 5.9g/t Au BSDD315M 60.1m @ 3.4g/t Au

19100N

  • Two

additional holes used in Inferred Mineral Resource estimate: BS17DD387M & BS17DD389M

19100N

BS18DD389M 18.3m @ 4.3g/t Au 12.6m @ 3.7g/t Au

W E

BS17DD387M No significant intersections

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SLIDE 7

7 NYSE: GSS TSX: GSC

B Shoot South Drilling: 18900N

BS17DD385M 23.8m @6.1 g/t Au 21.7m @ 5.3 g/t Au BS17DD385D2 4.3m @ 25.9 g/t Au BS17DD385D1 15.9m @4.3g/t BS17DD385D3 5.0m @ 5.5 g/t Au

18900N

BS17DD385D3 15.0 m @ 3.8 g/t Au 8.1 m @ 3.6 g/t Au BS17DD385D3 94m @ 4.3 g/t Au BS17DD385D4 7.7m @ 5.2 g/t Au

18900N

  • Four additional holes used in Inferred

Mineral Resource estimate: BS17DD385D2, BS17DD385D3, BS17DD385D4 & BS18DD388M

W E

BS18DD388M 58.5 m @ 4.8 g/t Au