Aterian Plc announced the positive results, including 4.01 % copper (" Cu") and 26.9 g/t silver ("Ag"), from recent sampling conducted on the Company's Azrar Project ("Azrar") located in Morocco. The Project, which was recently expanded following the award of two new licences, now covers 99.3 km2, is located within the western Anti-Atlas Mountains of the Kingdom of Morocco (" Morocco") and lies 30 km north of the Company's Tata copper project. The Azrar Project is one of 17 copper, silver and base metal projects owned by Aterian, covering 897 km2 in Morocco within established current and historic mining districts.

Latest sampling reports up to 4.01 % copper and 26.9 g/T silver from the sedimentary-hosted copper target. Continued copper mineralisation has been identified within previously mapped Adoudouian sediments, with additional mineralised quartz veins and fault-related breccia zones discovered on the new licences. Quartz vein zones on the new licence areas have gold ("A Au") as a by-product and report 1.19 % Cu, 0.50 g/t Au and 1.22 % Cu, 0.33 g/t Au.

The project is located in central Morocco within the western Anti-At Atlas, a region considered highly prospective for sedimentary-hosted copper mineralisation. Several historical workings have been mapped on the recently awarded licence areas. The Company holds 17 highly prospective projects in Morocco, totaling 897 km2.

These recent results from the Azrar Project are both very encouraging, with the continuation of the sedimentary-hosted Copper, and fascinating, with the identification of multiple other geological sources of copper mineralisation. The laboratory analyses from these new licences are very positive, with the multiple zones of quartz veins identified reporting good copper and unexpected associated gold values. The mineralisation on the Project is observed hosted in fault-related breccia zone, late-stage quartz veins and hosted within carbonate and siltstone sedimentary sequences of the Adoudou Formation.

Several abandoned artisanal workings have been identified across the Project, with host rocks on the Project comparable to the nearby Managem-owned Tizert copper project. Earlier prospecting by the Company on the Azrar Project reported strong copper grades, including 3.79 % Cu and 23 g/t Ag from a NE-SW trending fault breccia trending across the central area of the project. The recent fieldwork, with results reported, concentrated on preliminary reconnaissance over two new licences granted to the Company in August 2023 and continuing exploration of the northwestern part of the original Project area.

A total of 41 samples were collected during this reported sampling campaign. Of these samples, 17 (41 % of this batch) were > 0.3 % Cu, with 11 samples returning values greater than 1 % Cu.