Meridian Mining Plc · TSX:MNO

Meridian Mining — Technical Presentation (2025)

37 slides from Meridian Mining's technical presentation, 2025

1. Slide 1: Cabaçal Long and Cross Sections

   MERIDIAN MINING CABAÇAL LONG AND CROSS SECTIONS Technical Presentation MNO MRRDF 2MM meridianmining.co

2. Slide 2: Cautionary Note Regarding Forward-Looking Statements

   C AUTIONARY N OTE R EGARDING MERIDIAN F ORWARD -L OOKING S TATEMENTS MINING This presentation does not constitute or form a part of, and should not be construed as an offer, solicitation or invitation to subscribe for, underwrite or otherwise acquire, any securities of Meridian Mining UK Societas (“

3. Slide 3: Long Sections

   Long Sections meridianmining.co MNO MRRDF 2MM 3

4. Slide 4: Long-Section Plan

   L ONG - S E CT I ON P L A N MERIDIAN MINING Notes: 1 Block Model Filtered to >0.5 g/t AuEq meridianmining.co MNO MRRDF 2MM 4

5. Slide 5: Long-Section

   L ONG - S E CT I ON 1 - 1 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 5

6. Slide 6: Long-Section

   L ONG - S E CT I ON 2 - 2 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 6

7. Slide 7: Long-Section

   L ONG - S E CT I ON 3 - 3 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 7

8. Slide 8: Long-Section

   L ONG - S E CT I ON 4 - 4 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 8

9. Slide 9: Long-Section

   L ONG - S E CT I ON 5 - 5 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 9

10. Slide 10: Long-Section

    L ONG - S E CT I ON 6 - 6 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 10

11. Slide 11: Long-Section

    L ONG - S E CT I ON 7 - 7 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 11

12. Slide 12: Long-Section

    L ONG - S E CT I ON 8 - 8 ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 12

13. Slide 13: Cross Sections

    Cross Sections meridianmining.co MNO MRRDF 2MM 13

14. Slide 14: Cross-Section Plan

    C R OSS - S E CT I ON P L A N MERIDIAN MINING Notes: 1 Block Model Filtered to >0.5 g/t AuEq meridianmining.co MNO MRRDF 2MM 14

15. Slide 15: Section A-A

    C R OSS - S E CT I ON A - A ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 15

16. Slide 16: Section B-B

    C R OSS - S E CT I ON B - B ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 16

17. Slide 17: Section C-C

    C R OSS - S E CT I ON C - C ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 17

18. Slide 18: Section D-D

    C R OSS - S E CT I ON D - D ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 18

19. Slide 19: Section E-E

    C R OSS - S E CT I ON E - E ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 19

20. Slide 20: Section F-F

    C R OSS - S E CT I ON F - F ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 20

21. Slide 21: Section G-G

    C R OSS - S E CT I ON G - G ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 21

22. Slide 22: Section H-H

    C R OSS - S E CT I ON H - H ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 22

23. Slide 23: Section I-I

    C R OSS - S E CT I ON I - I ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 23

24. Slide 24: Section J-J

    C R OSS - S E CT I ON J - J ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 24

25. Slide 25: Section K-K

    C R OSS - S E CT I ON K - K ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 25

26. Slide 26: Section L-L

    C R OSS - S E CT I ON L - L ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 26

27. Slide 27: Section M-M

    C R OSS - S E CT I ON M - M ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 27

28. Slide 28: Section N-N

    C R OSS - S E CT I ON N - N ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 28

29. Slide 29: Section O-O

    C R OSS - S E CT I ON O - O ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 29

30. Slide 30: Section P-P

    C R OSS - S E CT I ON P - P ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 30

31. Slide 31: Section Q-Q

    C R OSS - S E CT I ON Q - Q ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 31

32. Slide 32: Section R-R

    C R OSS - S E CT I ON R - R ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 32

33. Slide 33: Section S-S

    C R OSS - S E CT I ON S - S ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 33

34. Slide 34: Section T-T

    C R OSS - S E CT I ON T - T ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 34

35. Slide 35: Section U-U

    C R OSS - S E CT I ON U - U ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 35

36. Slide 36: Section V-V

    C R OSS - S E CT I ON V - V ’ MERIDIAN MINING meridianmining.co MNO MRRDF 2MM 36

37. Slide 37: Contact: Gilbert Clark, Meridian Mining

    Meridian Mining UK S Gilbert Clark Phone: +1 778 715 6410 Corporate Address: Chief Executive Officer Email: info@meridianmining.net.br 8th Floor 4 More London, Riverside, London, United Kingdom, SE1 2AU Technical Presentation MNO MRRDF 2MM meridianmining.co

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