16 September 2025

Harena Resources Plc

("Harena" or the "Company")

Intention to Cross-Trade on the OTCQB Market

Appointment of Donohoe Advisory Associates LLC as US adviser

Harena Resources Plc (LSE: HREE), the rare earths company focused on the Ampasindava ionic clay rare earth project in Madagascar (the "Ampasindava Project"), announces that it intends to file an application with the OTC Markets Group ("OTC") for the Company's ordinary shares of 0.5 pence each ("Ordinary Shares") to be publicly cross-traded on the OTCQB Venture Market (the "OTCQB Market"). Subject to approval, the OTCQB Market will provide easier access to trading in the Ordinary Shares to investors in North America.  

Donohoe Advisory Associates LLC ("Donohoe Advisory"), a leading advisory firm focused exclusively on assisting companies with Nasdaq, NYSE, and OTC Markets listing matters, will act as OTC Sponsor to the Company. 

Ivan Murphy, Non-Executive Chairman of Harena, said:

"Cross-trading on the OTCQB Market is an important step for the Company as we seek to connect with key U.S. stakeholders, including not only investors seeking exposure to our strategically important rare earth project, but also institutions and corporate partners. Furthermore, it reflects our recognition of the ever-growing U.S. critical mineral demand and breaking the reliance on China. We are delighted to be working with Donohoe Advisory and we look forward to progressing our OTCQB Market application."

The Ordinary Shares will continue to trade on the London Stock Exchange under the ticker "HREE".

A further announcement will be made once the application is approved.

For further information please contact:

Notes to editors

Harena (www.harenaresources.com.au) is a rare earths exploration and development company focused on the Ampasindava Ionic Clay Rare Earth Project in Madagascar (Harena's interest is 100%). The project hosts one of the largest ionic clay rare earth deposits outside of China, with significant concentrations of high-value magnet metals. Harena is committed to low-impact, high recovery mining, providing a sustainable supply of critical minerals for the global energy transition and military defence industries. Forward-Looking Statements This announcement contains forward-looking statements that involve risks nd uncertainties. Actual results may differ materially from those expressed or implied in such statements.