MARIMACA COPPER CORP. — Share Issue/Capital Change 2026

May 14, 2026

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

Announcement Summary

Entity name
MARIMACA COPPER CORP.

Date of this announcement
Friday May 15, 2026

The +securities the subject of this notification are:
Unquoted options that have been exercised or other unquoted +convertible securities that have been converted
Total number of +securities to be issued/transferred

ASX +security code	Security description	Total number of +securities to be issued/transferred	Issue date
MC2AA	COMMON SHARES	198,710	06/05/2026

Refer to next page for full details of the announcement

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

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Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

Part 1 - Entity and announcement details

1.1 Name of entity
MARIMACA COPPER CORP.
We (the entity named above) give notice of the issue, conversion or payment up of the following unquoted +securities.

1.2 Registered number type
Registration number
ARBN
683017094

1.3 ASX issuer code
MC2

1.4 The announcement is
New announcement

1.5 Date of this announcement
15/5/2026

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

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Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

Part 2 - Issue details

2.1 The +securities the subject of this notification are:
Unquoted options that have been exercised or other unquoted +convertible securities that have been converted

2.2b The +securities being issued, transferred or re-classified as a result of the options being exercised or other +convertible securities being converted are:
in a class which is not quoted on ASX but which has an existing ASX security code ("existing class")

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities
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Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

Part 3B - number and type of +securities the subject of this notification (existing class) where issue has not previously been notified to ASX in an Appendix 3B

The right of the holder of the options or other +convertible securities to receive the +underlying securities is being satisfied by:
An issue of new +securities

The underlying securities being received by the holder are:
Are not, and are not intended to be, quoted by ASX

Existing +securities converting into an existing class
FROM (Existing Class)
ASX +Security code and description
MC2AE : OPTION EXPIRING 06-MAY-2026 EX CAD 5.00

TO (Existing Class)
ASX +Security code and description
MC2AA : COMMON SHARES

Please state the number of options that were exercised or other +convertible securities that were converted	The first date the options were exercised or other +convertible securities were converted	The last date the options were exercised or other +convertible securities were converted
560,000		6/5/2026

Is this all of the options or other +convertible securities on issue of that type?
Yes

Were the options being exercised or other +convertible securities being converted issued under an +employee incentive scheme?
Yes

Are any of the options being exercised or other +convertible securities being converted held by +key management personnel (KMP) or an +associate?
No

Date the +securities the subject of this notification were issued/transferred
6/5/2026

Will the +securities rank equally in all respects from their issue date with the existing issued +securities in that class?
Yes

Any other information the entity wishes to provide about the +securities the subject of this notification

Issue details

Number of +securities
198,710

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

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Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities

Part 4 - +Securities on issue

Following the issue, conversion or payment up of the +securities the subject of this notification, the +securities of the entity will comprise:

The figures in parts 4.1 and 4.2 below are automatically generated and may not reflect the entity's current issued capital if other Appendix 2A, Appendix 3G or Appendix 3H forms are currently with ASX for processing.

4.1 Quoted +securities (Total number of each +class of +securities issued and quoted on ASX)

ASX +security code and description	Total number of +securities on issue
MC2 : CHESS DEPOSITARY INTERESTS 1:1	45,042,725

4.2 Unquoted +securities (Total number of each +class of +securities issued but not quoted on ASX)

ASX +security code and description	Total number of +securities on issue
MC2AM : OPTION EXPIRING 30-MAR-2031 EX CAD 7.93	100,000
MC2AG : OPTION EXPIRING 23-DEC-2026 EX CAD 3.69	820,000
MC2AH : OPTION EXPIRING 19-MAY-2028 EX CAD 4.00	425,000
MC2AI : OPTION EXPIRING 14-NOV-2028 EX CAD 3.40	200,000
MC2AL : RESTRICTED SHARE UNITS	3,245,126
MC2AA : COMMON SHARES	89,931,884
MC2AE : OPTION EXPIRING 06-MAY-2026 EX CAD 5.00	0

Appendix 3G - Notification of issue, conversion or payment up of unquoted equity securities