Aterian PLC - Rio Tinto Earn-In JV Update, Rwanda

Aterian Plc is pleased to provide an operational update on the HCK Project in Rwanda managed by Rio Tinto. Rio Tinto is investing in exploring for critical minerals for energy transition, and key highlights include upcoming drilling, soil sampling results pending, completion of structural interpretations, and preparation for drilling campaigns. The joint venture with HCK Mining Company is progressing well, with Rio Tinto six months into Stage 1 of the investment agreement.

The Company's Chairman, Charles Bray, is encouraged by the progress made and looks forward to updating investors on exploration efforts in Morocco, Botswana, and Rwanda. Aterian focuses on developing critical metal opportunities to support renewable energy development.