On 5 March 2026, Sentinel Exploration Limited lodged a prospectus (“Prospectus”) with ASIC targeting to raise $1m at $0.20 per share (“Public Offer”).  Following the end of the exposure period required by the Corporations Act, applications can be made through automicgroup.com.au. For information purposes only, a copy of the Prospectus can be downloaded by clinking on “I ACCEPT” below.  In doing so you acknowledge and agree that the Public Offer is only made under the Prospectus and that no offer is made by Sentinel on this website.  Persons should consider the Prospectus in deciding whether to acquire Shares under the Public Offer.  Anyone wishing to acquire Shares under the Public Offer will need to complete the application form that accompanies the Prospectus (and which is available through automicgroup.com.au). Download the Prospectus below: --- I accept - Download the Sentinel Prospectus === If you have any questions please contact the Company Secretary via email - cosec@sentinelexploration.com.au News Release Date: 6 March 2026 === Sentinel Exploration Limited owns multiple projects in geographically diverse domains in Western Australia. The Company continues to acquire, then value add mineral exploration, development, and mining opportunities in Australia and across the globe. [...]

Sentinel Exploration Limited has released its Half Year Report for period ending 31 December 2025. Half Yearly Report - End 31 December 2025 News Release Date: 6 March 2026 === Sentinel Exploration Limited owns multiple projects in geographically diverse domains in Western Australia. The Company continues to acquire, then value add mineral exploration, development, and mining opportunities in Australia and across the globe.

Sentinel Exploration Limited has released its 2025 Annual Report for the financial year ending 30 June 2025. 2025 Annual Report News Release Date: 29 October 2025 === Sentinel Exploration Limited owns five projects in geographically diverse domains in Western Australia. The Company continues to acquire, then value add mineral exploration, development, and mining opportunities in Australia and across the globe.

Sentinel Exploration Limited has released its 2024 Annual Report for the financial year ending 30 June 2024. 2024 Annual Report News Release Date: 24 October 2024 === Sentinel Exploration Limited owns projects in geographically diverse domains in Western Australia. The Company continues to acquire, then value add mineral exploration, development, and mining opportunities in Australia and across the globe.

Sentinel Exploration Limited is currently running a second RC drilling program at its Cubbine Hills Gold Project, east of Perth, WA Sentinel is grateful for the Government Department of Mines (DEMIRS) Exploration Incentive Scheme (EIS) co-funding in assisting our Cubbine Hills drilling programs. Sentinel's program will hit the interpreted higher-grade zone to the north and at depth of a significant Gold in soil anomaly previously discovered by the Company, which was drilled mid-2024, with that drilling program's assays showing that we have successfully intersected a relatively flat lying NE dipping at 30deg gold system with arsenic pathfinder associated with better Gold grades. Figure 1 - Current RC Drilling program underway at Cubbine Hills, WA. Drilling Program Overview: Sentinel are extending the previous RC drilling program from June 2024, further to the north which is expected to define more mineralised gold zones which will hopefully lead to resource definition. Further UFF soil sampling is also planned for the separate significant NE trending Cu-Mo anomaly to better define the entire strike length which shows potential to be up to 4km long. Figure 2 - Current RC Drilling program underway at Cubbine Hills, WA. Results from assays stemming [...]

Sentinel Exploration Limited are pleased to announce that we have reached an agreement to sell Sentinel’s interests in the Jupiter REE JV (formerly known as the Iron Duke REE JV) to Venture Minerals Ltd (“Venture Minerals” ASX: VMS) for $1.5m (subject to their shareholder approval in late August – refer ASX announcement 1 July 2024). This sale coincides with a $6.2M fundraising announced by Venture Minerals on Monday 1 July 2024. Sentinel is expected to hold approximately 3% in Venture Minerals after the raising. Cornerstone investors in the raising included Lion Selection, a specialist and highly regarded mining fund. Venture Minerals will hold 100% of a large, high-grade Rare Earth Elements (“REEs”) discovery once the transaction is closed. Venture Minerals and Sentinel discovered clay hosted REEs over a 40km2 footprint at Jupiter, located approximately 230km inland of Geraldton in the Mid-West region of Western Australia (refer ASX announcement – Fund Raising Deck). REE’s have become a commodity sector of huge strategic interest to governments, with a broad suite of applications in magnets and super magnets, motors, metal alloys, electronic and computing equipment, batteries and catalytic converters. Production is dominated by China, and western Governments are providing support to develop [...]

Sentinel Exploration Limited recently completed a 12 hole, 1,058m RC drilling program at its Cubbine Hills Project, drilled by Stark Drilling. The drilling was designed to test a significant gold in soil anomaly discovered by Sentinel in 2022. Sentinel is grateful for the Government Department of Mines (DEMIRS) Exploration Incentive Scheme (EIS) co-funding in assisting our Cubbine Hills drilling programs. Results from the assays show that we have successfully intersected a relatively flat lying NE dipping at 30deg gold system with arsenic pathfinder associated with better gold grades. It appears that we are only at the start of it given the increasing grades northwards shown in the sections below. Further drilling is planned to hopefully hit the interpreted higher-grade zone to the north and at depth in the next few holes. Next steps at Cubbine Hills are to extend the RC drilling program further to the north which is expected to define more mineralized gold zones which will hopefully lead to resource definition. This drill program is co-funded by a DEMIRS EIS Grant (up to $152,500 for drilling based on a 50/50 co-contribution between Sentinel and DEMIRS). Further UFF soil sampling is also planned for the separate significant NE [...]

Sentinel Exploration Limited has released its 2023 Annual Report for the financial year ending 30 June 2023. 2023 Annual Report News Release Date: 20 October 2023 === Sentinel Exploration Limited owns five projects in geographically diverse domains in Western Australia. The Company continues to acquire, then value add mineral exploration, development, and mining opportunities in Australia and across the globe.

Sentinel Exploration Limited has provided the following update to shareholders, with Sentinel owning five projects in geographically diverse domains in Western Australia (Figure 1). Exploration is at an early stage in all five projects (Iron Duke, Barlee, Marda East, Cubbine Hills and Kirup), but substantial investigatory investment and field effort has been expended by the Company to date to advance four of the five projects to drill target status, targeting Lithium, two high order Gold targets, a Copper target and Rare Earths, with drilling success in JV at Iron Duke. Figure 1: Location Map, Sentinel Projects. IRON DUKE PROJECT - Rare Earth Elements Venture Minerals Limited (ASX: VMS) are earning 51% by drilling Sentinel’s Iron Duke Project near Yalgoo in Murchison region of WA. The maiden drill program has successfully confirmed Rare Earth Elements (REE) over good widths and grades including ~23% Magnetic Rare Earths (MREO) which have higher prices in the suite of REE’s. Figure 2. Iron Duke drill hole locations. A summary of the drilling on our Iron Duke Project is shown above. This excerpt of Figure 2 is from Venture Minerals ASX release on August 1 2023, as well as the full [...]

Sentinel Exploration Limited has provided the following update on its five project locations in Western Australia - including recent transactions with Kula Gold and Venture Minerals on the Kirup and Iron Duke Projects respectively. Sentinel Exploration now owns five projects in geographically diverse domains in Western Australia (Figure 1). FIGURE 1. Location map, Sentinel project areas Exploration is at an early stage in all five projects, but substantial investigatory investment and field effort has been expended by Sentinel to date. All five projects demonstrate significant upside for economic mineralisation including battery minerals. KIRUP is a large leasehold within a recently proven metalliferous domain. The Kirup tenements are only 20km from the giant Greenbushes lithium and tantalum mine and are transected by a mineralised shear zone suggested as the mineralising conduit for the Greenbushes accumulation. The Kirup tenements also have nickel/copper/PGE potential with a magnetic signature analogous to the recently discovered large Julimar deposit north of Perth. The Donnybrook historic gold mine is adjacent to the Sentinel Leases, indicating an active mineralisation process for gold. The leases are lightly explored.Sentinel has completed a sale and JV on the southern tenement with Kula Gold, to share the exploration risk [...]