PTR MINERALS LTD — Regulatory Filings 2021

Mar 28, 2021

PETRATHERM LIMITED ACN 106 806 884

ASX: PTR

www.petratherm.com.au admin@petratherm.com.au

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ASX ANNOUNCEMENT 29 March 2021

Outback Goldfields begins trading on the OTCQB Exchange under the symbol OZBKF

Enclosed is an announcement that has been lodged by Outback Goldfields Corp (“Outback”, formerly known as Skarb Exploration Corp.) on the Canadian Stock Exchange (“CSE”).

As previously announced on 12 October 2020 (ASX Announcement: Definitive Agreement Executed – sale of VIC gold assets), Petratherm Limited (“Petratherm” or “the Company”) (ASX: PTR) executed a Definitive Agreement to sell the Company’s Victorian Gold Project Assets to Outback. In return for the Project, Outback has issued 33,333,333 shares (“Consideration Shares”) to the Company, which will subsequently be transferred in specie to Petratherm’s shareholders. The Consideration Shares represent a 57% ownership interest in Outback. As Petratherm Limited currently has a material interest in Outback it is cross-releasing this announcement on the ASX platform to fulfill its Continuous Disclosure Requirements under ASX listing rule 3.1.

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DONALD STEPHENS COMPANY SECRETARY

For further information, please contact:

Peter Reid, Exploration Manager, Tel: (08) 8133 5000

This ASX announcement has been approved by Petratherm’s Board of Directors and authorised for release

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(CSE: OZ, OTCQB: OZBKF, FSE: S600)

FOR IMMEDIATE RELEASE March 26, 2021

OUTBACK GOLDFIELDS BEGINS TRADING ON THE OTCQB EXCHANGE UNDER THE SYMBOL OZBKF

Vancouver, British Columbia – March 26, 2021 – Outback Goldfields Corp. (the “ Company ” or “ Outback ”) ( CSE: OZ, OTCQB: OZBKF, FSE: S600 ) is pleased to announce that it has qualified to trade on the OTCQB® Venture Market, a top-tier public market in the United States, and its common shares are now trading on the OTCQB under the ticker symbol “OZBKF”. Outback will continue to trade on the Canadian Securities exchange in Canada under the symbol “OZ” and on the Frankfurt Exchange under the symbol “S600”.

Chris Donaldson, Outback’s CEO, commented, "We are pleased to commence trading on the OTCQB Market which will enhance Outback’s visibility and provide a more efficient platform for U.S. gold investors."

About the OTC Markets Group Inc.

OTC Markets Group Inc. (OTCQX: OTCM) operates the OTCQX® Best Market, the OTCQB® Venture Market, and the Pink® Open Market for 11,000 U.S. and global securities. Through OTC Link® ATS, they connect a diverse network of broker-dealers that provide liquidity and execution services. They enable investors to easily trade through the broker of their choice and empower companies to improve the quality of information available for investors.

About Outback Goldfields Corp.

Outback Goldfields Corp. is a well financed exploration mining company holding a package of four highly prospective gold projects located proximate and adjacent to the Fosterville Gold Mine in Victoria, Australia. The initial Phase 1 exploration program is now underway on two of the four company tenements. The Goldfields of Victoria, Australia are home to some of the highest grade and lowest cost mining in the world.

~signed

Chris Donaldson, CEO and Director

Investor Relations and Corporate Enquiries: Email: info@outbackgoldfields.com Tel: +1.604.900.3450