Aterian PLC - High Grade Li2O and Rio Tinto Exercise JV Rights

Aterian PLC is pleased to announce positive results from its recent drilling campaign in Rwanda with Rio Tinto. Rio Tinto has decided to exercise its earn-in rights, showing a 51% interest in the project. The drilling campaign revealed high-grade lithium mineralization, confirming the project's potential. The next steps involve further evaluation and planning for future exploration. Despite encountering challenges in some drill holes, the overall progress is promising. The Company is committed to sustainable practices, as seen in its ESG activities. Aterian PLC looks forward to advancing its critical minerals projects in Africa and building a sustainable future.