RIMFIRE PACIFIC MINING LIMITED — Board/Management Information 2021

Oct 14, 2021

15 October 2021

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Appointment and Retirement of Non-Executive Director

Rimfire Pacific Mining NL (ASX code “RIM” or the “Company”) is pleased to announce the appointment of Mr David Hutton as an Independent, Non-Executive Director, effective today.

Mr Hutton is a geologist who has spent the last 30 years working in both exploration and mining throughout Australia and overseas. David has recently established Terrace Minerals, an independent consultancy offering technical and corporate services to the resources sector. Prior to establishing Terrace Minerals in June 2020, David spent 19 years working in a range of senior operational geological roles with the MIM Group, Forrestania Gold, Western Metals, LionOre Australia and Breakaway Resources, followed by a further 11 years working as a Chief Executive Officer / Managing Director of ASX listed mineral exploration companies Breakaway Resources Limited and Mithril Resources Limited.

David has been intimately involved with the discovery and / or delineation of numerous precious and base metal deposits, including the Thunderbox Gold Deposit and Horn Nickel Deposit (WA Goldfields), Altia Silver-Lead-Zinc Deposit (Cloncurry District, Qld), F8 Zinc Deposit (Lennard Shelf, WA), and the Barda Gonzales Copper Deposit (Western Argentina).

David brings considerable experience in the development of corporate strategy, business networking and stakeholder engagement, and is a Fellow of the AusIMM and a Member of the Australian Institute of Geoscientists (AIG).

The Company also advises that Mr Andrew Greville intends to retire as a Non-Executive Director at the conclusion of the Annual General Meeting to be held on Thursday, 18 November 2021.

Chairman Ian McCubbing stated:

“On behalf of the Directors and shareholders, I am very pleased to welcome David to the Board of Directors. His experience and expertise in the industry will be a great asset to the Rimfire team and we look forward to the insights and advice he will bring to the Company. I would also like to thank Andrew Greville on behalf of the Directors and shareholders for his significant contributions to the Company since August 2017. His expertise has been greatly appreciated and the Board wish Andrew every success for his future endeavours.”

This announcement is authorised for release to the market by the Board of Directors of Rimfire Pacific Mining NL.

For further information, please contact:

Greg Keane, CFO / Investor Relations +61 3 9620 5866

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Suite 142, Level 1, 1 Queens Road Melbourne VIC 3004 Phone +61 (0)3 9620 5866 rimfire@rimfire.com.au rimfire.com.au

Rimfire Pacific Mining NL | ABN 59 006 911 744 | ASX: RIM

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ABOUT RIMFIRE

Rimfire Pacific Mining (ASX:RIM) is an ASX listed exploration company focused on projects in the Lachlan Fold Belt in central NSW and Broken Hill NSW. The company has a track record of successful exploration and asset monetisation through partnership agreements.

Rimfire currently has four key project areas under management in the Lachlan Fold Belt:

1. The Valley – Porphyry Copper / Gold, RIM 100% ✓ Located 5km west of Kincora Copper/RareX Mordialloc porphyry copper-gold target.

   • ✓ Recently completed a drilling program to test near surface IP targets and interpreted Ordovician basement that hosts regional major discoveries such as Northparkes, Cadia and Cowal.

2. Cowal Project - Copper / Gold, RIM 100%.

   • ✓ Located to the east of Evolution’s Lake Cowal Copper / Gold mine ✓ Little exploration has occurred on these tenements and prospective for Copper / Gold

3. Fifield Project - Gold / PGE’s

   • ✓ GPR earning up to 50.1%, RIM free carried for development. ✓ Maiden JORC 2012 resource of 125Koz gold + 7.9Moz silver.

   • ✓ Recent drilling at the Transit Prospect returned 55m @ 0.94g/t gold with the final 1m intersection increasing to 9.98g/t gold.

4. Avondale Project – Cobalt, PGEs and Gold

   • ✓ GPR earning up to 75%

   • ✓ Avondale and KARS prospects located in the southern area of the project area and prospective for Cobalt and PGE’s respectively.

Rimfire also has a key project located at Broken Hill:

1. Green View – Cobalt, RIM 100%

   • ✓ Located 15km from Broken Hill

   • ✓ Adjacent to significant Cobalt Blue Holdings Railway Cobalt Resource

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Suite 142, Level 1, 1 Queens Road Melbourne VIC 3004 Phone +61 (0)3 9620 5866 rimfire@rimfire.com.au rimfire.com.au

Rimfire Pacific Mining NL | ABN 59 006 911 744 | ASX: RIM