MARIMACA COPPER CORP. — Share Issue/Capital Change 2026

Feb 26, 2026

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

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Announcement Summary

Entity name

MARIMACA COPPER CORP.

Date of this announcement

Friday February 27, 2026

The +securities the subject of this notification are:

+Securities issued as part of a transaction or transactions previously announced to the market in an Appendix 3B that are not quoted, and are not intended to be quoted, on ASX

Total number of +securities to be issued/transferred

		Total number of
ASX +security		+securities to be
code	Security description	issued/transferred	Issue date
MC2AA	COMMON SHARES	13,650,000	26/02/2026

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

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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

27/2/2026

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

Part 2 - Issue details

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2.1 The +securities the subject of this notification are:

+Securities issued as part of a transaction or transactions previously announced to the market in an Appendix 3B that are not quoted, and are not intended to be quoted, on ASX

Previous Appendix 3B details:

Announcement Date and	Announcement Title	Selected Appendix 3B to submit quotation
Time		request
19-Feb-2026 09:24	New - Proposed issue of securities -	A placement or other type of issue
	MC2

2.3a.2 Are there any further issues of +securities yet to take place to complete the transaction(s) referred to in the Appendix 3B?

No

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

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Part 3A - number and type of +securities the subject of this notification (existing class or new class) where issue has previously been notified to ASX in an Appendix 3B

Placement Details ASX +security code and description MC2AA : COMMON SHARES Date the +securities the subject of this notification were issued 26/2/2026 Any other information the entity wishes to provide about the +securities the subject of this notification Issue details

Number of +securities 13,650,000 Were the +securities issued for a cash consideration? Yes In what currency was the cash consideration being What was the issue price per +security? paid? CAD - Canadian Dollar CAD 10.00000000

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

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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)

	Total number of
ASX +security code and description	+securities on issue
MC2 : CHESS DEPOSITARY INTERESTS 1:1	27,466,729
4.2 Unquoted +securities (Total number of each +class of +securities issued but not quoted on ASX)
	Total number of
ASX +security code and description	+securities on issue
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	2,614,715
MC2AA : COMMON SHARES	106,252,645
MC2AD : OPTION EXPIRING 25-MAR-2026 EX CAD 4.60	200,000
MC2AE : OPTION EXPIRING 06-MAY-2026 EX CAD 5.00	1,855,000

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

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

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