Octava Minerals Limited (ASX:OCT) is a Western Australia-based mineral exploration company focused on critical minerals including lithium, gold, antimony, nickel, platinum group elements (PGM), rare earth elements (REE), copper, zinc and silver; its principal projects comprise the 100% owned East Pilbara Talga project covering 202 square kilometres prospective for LCT pegmatites and intrusion-related gold deposits such as the Pinnacle Well and Nimerry lithium prospects and Razorback gold prospect; the 100% owned Yallalong project spanning 63 square kilometres targeting Ni-Cu-Co-PGM mineralisation with identified soil anomalies up to 400 metres across; the Byro REE and lithium project in the Gascoyne region featuring large anomalous halos over 40 kilometres strike; and the East Kimberley nickel, copper and PGM properties including Panton North and Copernicus North under a joint venture with Future Metals (ASX:FME) granting the partner a right to earn up to 70% interest by funding A$2 million in exploration while carrying Octava free to a decision to mine. Founded in 2020 and headquartered at Suite 1, 234 Churchill Avenue, Subiaco, Western Australia 6008, the company operates primarily in Western Australia with recent expansion into Tasmania; it changed its name from 8AU Limited in February 2022 following its ASX listing in September 2022 after raising A$6 million. Latest developments include the 2023 acquisition of 100% ownership of the Talga project from First Au Limited for A$200,000 cash, 1.25 million shares and a 0.75% net smelter royalty; positive Stage 1 CSIRO metallurgical test work at Byro confirming adaptable bioleach cultures for REE and lithium processing; and in July 2025 a placement raising A$457,500 in the first tranche toward A$1.5 million to fund the acquisition of Magnes 25 Pty Ltd and its Federation multi-element project in Tasmania featuring historical high-grade copper-zinc-silver-tin intersections such as 23 metres at 1.19% copper, 1.70% zinc and 121 g/t silver at Sweeneys prospect.