30 April 2026

Harena Rare Earths Plc

("Harena" or the "Company")

Appointment of Chief Financial Officer

Harena Rare Earths Plc (LSE: HREE) (OTCQB: CRMNF), the rare earths company progressing the Ampasindava ionic clay project in Madagascar (the "Ampasindava Project"), is pleased to announce the appointment of Jack Allardyce as Chief Financial Officer ("CFO") with immediate effect.

Jack has been working as Interim CFO since January 2026, during which time he has played a key role in the strengthening of the Company's financial and capital markets capabilities. 

Jack has substantial listed company experience, with a strong track record as a CFO and senior finance executive across the natural resources sector. He has extensive experience in capital markets, corporate finance, stakeholder engagement, and working with UK and international investors, and has supported a number of publicly listed companies through key growth and transactional phases. 

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Notes to editors

Harena (www.harenaresources.com) 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, specifically heavy rare earths, including neodymium (Nd), dysprosium (Dy), and praseodymium (Pr), which are critical for the composition of neodymium magnets (NdFeB). 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 as well as meeting the ever-growing demand for NdFeB from the robotics sector.