MARIMACA COPPER CORP. — Capital/Financing Update 2025

Jun 4, 2025

Appendix 3B - Proposed issue of securities

==> picture [21 x 22] intentionally omitted <==

Announcement Summary

Entity name

MARIMACA COPPER CORP.

Announcement Type

New announcement

Date of this announcement

4/6/2025

The Proposed issue is:

A placement or other type of issue

Total number of +securities proposed to be issued for a placement or other type of issue

		Maximum Number of
ASX +security code	+Security description	+securities to be issued
MC2AA	COMMON SHARES	5,311,416

Proposed +issue date

10/6/2025

Refer to next page for full details of the announcement

Appendix 3B - Proposed issue of securities

1 / 5

Appendix 3B - Proposed issue of securities

==> picture [21 x 22] intentionally omitted <==

Part 1 - Entity and announcement details

1.1 Name of +Entity

MARIMACA COPPER CORP.

We (the entity named above) give ASX the following information about a proposed issue of +securities and, if ASX agrees to +quote any of the +securities (including any rights) on a +deferred settlement basis, we agree to the matters set out in Appendix 3B of the ASX Listing Rules.

If the +securities are being offered under a +disclosure document or +PDS and are intended to be quoted on ASX, we also apply for quotation of all of the +securities that may be issued under the +disclosure document or +PDS on the terms set out in Appendix 2A of the ASX Listing Rules (on the understanding that once the final number of +securities issued under the +disclosure document or +PDS is known, in accordance with Listing Rule 3.10.3C, we will complete and lodge with ASX an Appendix 2A online form notifying ASX of their issue and applying for their quotation).

1.2 Registered Number Type

ARBN

Registration Number

683017094

1.3 ASX issuer code

MC2

1.4 The announcement is

New announcement

1.5 Date of this announcement

4/6/2025

1.6 The Proposed issue is:

A placement or other type of issue

Appendix 3B - Proposed issue of securities

2 / 5

Appendix 3B - Proposed issue of securities

==> picture [21 x 22] intentionally omitted <==

Part 7 - Details of proposed placement or other issue

Part 7A - Conditions

7A.1 Do any external approvals need to be obtained or other conditions satisfied before the placement or other type of issue can proceed on an unconditional basis? Yes 7A.1a Conditions

Approval/Condition Date for determination Is the date estimated or ** Approval actual? received/condition met? Other (please specify in 6/6/2025 comment section) Estimated No

Comments

Obtaining Toronto Stock Exchange conditional approval is a condition precedent for closing.

Part 7B - Issue details

Is the proposed security a 'New class' (+securities in a class that is not yet quoted or recorded by ASX) or an 'Existing class' (additional securities in a class that is already quoted or recorded by ASX)? Existing class

Will the proposed issue of this +security include an offer of attaching +securities? No

Details of +securities proposed to be issued

ASX +security code and description MC2AA : COMMON SHARES

Number of +securities proposed to be issued

5,311,416

Offer price details Are the +securities proposed to be issued being issued for a cash consideration? Yes

In what currency is the cash What is the issue price per consideration being paid? +security? CAD - Canadian Dollar CAD 4.60000

AUD equivalent to issue price amount per +security

5.190000

Appendix 3B - Proposed issue of securities

3 / 5

Appendix 3B - Proposed issue of securities

==> picture [21 x 22] intentionally omitted <==

FX rate (in format AUD 1.00 / primary FX rate (in format AUD rate/primary currency rate): currency rate) Primary Currency rate CAD 0.88660000 AUD 1.00 Will these +securities rank equally in all respects from their issue date with the existing issued +securities in that class? Yes

Part 7C - Timetable

7C.1 Proposed +issue date 10/6/2025

Part 7D - Listing Rule requirements

7D.1 Has the entity obtained, or is it obtaining, +security holder approval for the entire issue under listing rule 7.1? No 7D.1b Are any of the +securities proposed to be issued without +security holder approval using the entity's 15% placement capacity under listing rule 7.1? No 7D.1c Are any of the +securities proposed to be issued without +security holder approval using the entity's additional 10% placement capacity under listing rule 7.1A (if applicable)? No 7D.2 Is a party referred to in listing rule 10.11 participating in the proposed issue? Yes 7D.3 Will any of the +securities to be issued be +restricted securities for the purposes of the listing rules? No 7D.4 Will any of the +securities to be issued be subject to +voluntary escrow? Yes 7D.4a Please enter the number and +class of the +securities subject to +voluntary escrow and the date from which they will cease to be subject to +voluntary escrow

5,311,416 common shares will be subject to a four-month and one day hold period under Canadian securities laws.

Part 7E - Fees and expenses

7E.1 Will there be a lead manager or broker to the proposed issue? No 7E.2 Is the proposed issue to be underwritten? No 7E.4 Details of any other material fees or costs to be incurred by the entity in connection with the proposed issue

A cash advisory fee equal to 2% will be payable to Beacon Securities Limited in connection with any investment by the Additional Investor referred to in the announcement dated June 4, 2025

Appendix 3B - Proposed issue of securities

4 / 5

Appendix 3B - Proposed issue of securities

Part 7F - Further Information

==> picture [21 x 22] intentionally omitted <==

7F.01 The purpose(s) for which the entity is issuing the securities

The net proceeds from the Private Placement will be used for exploration, to advance the Company¿s flagship Marimaca Copper Project located in the Antofagasta Region of northern Chile and for general corporate purposes.

7F.1 Will the entity be changing its dividend/distribution policy if the proposed issue proceeds? No

7F.2 Any other information the entity wishes to provide about the proposed issue

Appendix 3B - Proposed issue of securities

5 / 5