High grade polymetallic assays returned from Skyfall Silva volcanic massive sulphide (VMS) prospects, in addition to recently announced high grade Au Ag assays from Jaws, Quantum Lotus prospects.

Significant Precious and Base Metals District Potential identified from the cluster of prospects at Hook Lake.

Highlights

3rd November 2025 – Manhattan Corporation Ltd (“ASX:MHC”, “the Company”, or “Manhattan”) is pleased to announce the receipt of additional assay results from the maiden fieldwork program at the Hook Lake Project (“the Project”). These results have provided confirmation of significant expansion potential at the known Jaws deposit and have also identified previously untested, high-grade precious metal occurrences at the Quantum and Lotus prospects. Notably, further sampling has revealed three separate polymetallic c targets within the project area.

• These results are in addition to recently announced assays from greenstone gold targets at Lotus and Quantum that reported impressive precious metal values, including gold grades exceeding 16 g/t Au and silver grades as high as 2,600 g/t Ag. These results are from zones that had not been previously drill tested, highlighting the potential for significant gold and silver mineralisation within these prospects.

• Futhermore to the precious metal findings, the maiden campaign included the sampling of several VMS targets at Skyfall, the least explored prospect, several massive sulphide and stringer zones were sampled, This work has defined a 915m northwest-southeast trending prospective horizon. Results highlight a zinc rich mineral assemblage, with several samples displaying elevated levels of copper and precious metals, suggesting the possible presence of a zoned mineralized system. Notable assays from Skyfall include :
  • 29.97% Zn, 0.25 g/t Au (M209553),
  • 13.45% Zn, 0.78% Cu (M209549),
  • 11.85% Zn, 0.92% Cu (M209550),
  • 13.3% Zn, 0.11 g/t Au, 0.25 % Cu (M209557),
  • 1.32 g/t Au, 0.61% Cu (M209551),
  • 1.36% Cu, 0.69 g/t Au (M209552) and
  • 1.22% Cu, 35.1 g/t Ag (M209558)

• The Silva VMS prospect, located 6.4 kilometres northeast of Spectre and along the same volcanic horizon as the high-grade Quantum target, has also demonstrated robust polymetallic mineralisation. Assay results from Silva include:
  • 11.6% Zn, 1.85% Cu, 116g/t Ag, 0.22 g/t Au (M209527) and
  • 12.15% Zn, 0.76% Cu, 92.1 g/t Ag, 0.23 g/t Au (M209528)

• At Spectre, which has been the focus of historic drilling, recent sampling targeted exposed VMS horizons trending northeast–southwest over 47 metres within a previously drill-area. Surface exposure in this area is limited, but historical drilling returned significant polymetallic intersections, including:
  • GMX-01: 10.51m @ 2.91% Cu, 6.70% Zn, 95.67 g/t Ag, 1.04 g/t Au and 0.48% Pb from 41.76m and
  • GMX-02: 13.71m @ 1.51% Cu, 2.06% Zn, 47.23 g/t Ag, 0.56 g/t Au and 0.09% Pb from 70.26m

• Recent Sampling at Spectre returned:
  • 6.86% Zn (M209544) and
  • 2.82% Zn, 0.15% Cu 21.1 g/t Ag (M209541)

The identification of high-grade base metal showings across the Project provides Manhattan with a diverse and well- balanced project pipeline, offering multiple opportunities for future drill testing and continued exploration success.

Manhattan Corporation Technical Manager, Mr. Eric Sondergaard commented:

“These results further strengthen what is shaping up to be a significant precious and base metal district. In addition to the high-grade gold and silver showings at Quantum and Lotus, we are now seeing evidence of three separate polymetallic VMS systems extending across the project area.

These are surface samples, in part associated with legacy known mineralization that demonstrate strong zinc and copper values typical of fertile VMS environments. VMS systems commonly occur in clusters, and the identification of multiple mineralised horizons highlights the scale and continuity of the mineralising event across Hook Lake.

Copper and zinc are both designated critical metals essential for electrification and infrastructure, and the combination of these with precious-metal potential provides Manhattan with a diversified and strategically valuable exploration pipeline. Assessment of historic datasets is ongoing and will inform targeting and drill planning for the 2026 field season.”

Figure 1: Hook Lake Project Location planned airborne magnetic survey outline. 100m line spacing will be conducted within the pink outline with 50m infill within the blue “Detailed Aeromagnetics” polygon

Rock Sampling Campaign

Results from the maiden sampling campaign across the polymetallic VMS targets was successful in identifying zones of high grade zinc mineralisation associated with copper, silver and gold anomalism. These targets although not the primary focus of an initial drilling program, which will target greenstone gold mineralisation, offer an important pipeline of targets for follow up.

The identification of massive sulphides and stringer zones through field sampling has set a strong foundation for more detailed mapping in the coming field season. This will be particularly important for understanding the geometry of these targets, especially at the Skyfall prospect, an area with limited historic exploration.

VMS systems can typically exhibit zoning, with copper mineralisation occurring proximally and transitioning outward to zones dominated by zinc sulphides. Given that most surface samples collected were zinc dominant, there is considerable potential to identify copper-rich zones through additional surface sampling or targeted drilling activities.

To enhance the understanding of these prospects, an assessment of geophysical techniques, including airborne electromagnetic (EM) surveys, is underway. These methods will complement more detailed surface work planned for the VMS prospects, supporting ongoing exploration efforts

Figure 2a: Skyfall Sample Locations (Schematic Overview, Refer Figure 2b for exact Locations)

Figure 2b: Skyfall Sample Locations

Figure 3: Spectre and Silva Sample Locations

Figure 4: Rock sample M209549 from Skyfall, a massive sulphide consisting of sphalerite and chalcopyrite. Sample returned results of 13.45% Zn and 0.78% Cu.

Figure 5: Outcrop of rock sample M209541, a stringer zone of sphalerite and chalcopyrite at the Spectre VMS showing.

Figure 6: Outcrop of rock sample M209527, a semi-massive to massive sulphide of sphalerite, chalcopyrite and pyrite which returned 11.6% Zn, 1.85% Cu, 116g/t Ag, 0.22g/t Au from the Silva VMS target.

About the Hook Lake Project

The Project Comprises nine separate prospects (within three mineral claims and exploration agreements), covering a total of 580 km2 within the Rankin-Ennadai greenstone belt. Archean Greenstone Belts in Nunavut that host the Agnico Eagle owned 6.7moz Au Meladine Mine (34.3 million tonnes @ 6.12 g/t Au1) located in the same underexplored highly prospective Archean Greenstone Belts as Hook Lake (130 to 225 km to the northeast of Hook Lake) and the in-development Back River Gold District, Goose George Project boasting 9.2 Million Oz Au at 6.04 g/t measured, indicated Inferred with an anticipated 310,000 Ozs Au annual production – B2Gold, 20242) The project is located within the southeastern portion of Nunavut in proximity to Hudson Bay and the proposed Kivalliq Hydro-Fibre Link, a transboundary transmission project that will connect Manitoba's grid to Nunavut's Kivalliq region.

1 Agnico Eagle, 2015 - Updated Technical Report on the Meliadine Gold Project, Nunavut, Canada by Julie Larouche, Denis Caron, Larry Connell, Dany Laflamme, François Robichaud, François Petrucci Alexandre Proulx. February 11, 2015.

2 B2Gold, 2024 Reserves Resources Statement: https://www.b2gold.com/operations-projects/overview/default.aspx#probable

Figure 7: Hook Lake Project Location Nearby Meliadine Gold Mine operated by Agnico Eagle.

ENDS

This release was authorised by the Board of the Company.

For further information +61 8 9322 6677 or Email: [email protected]

Table 1: | Rock sample information. (NAD83 datum taken with handheld GPS Unit. UTM NAD83 Zones 14N or 15N).

Historic (Foreign) Estimate

The historical estimate referenced in this announcement for the Project is historical in nature. Manhattan has not undertaken any independent investigation or review, nor has it independently analysed or reviewed the results of the historical exploration work in order to verify these results. The Company believes that the historical estimates included in this release does not conform to presently accepted industry standards or classification either under JORC (2012) or any other recognised standard or code. Manhattan believes the historical estimate is material and relevant to Manhattan’s activities as it represents a significant exploration target for possible definition under of JORC Code (2012).

See MHC announcement dated 27th May 2025, “High Grade Gold Copper Acquisition – Amended ” for full disclosure of the historic estimate and historic exploration results, including diamond drilling and surface rock sampling.

JORC Code, 2012 Edition – Table 1

As required by Listing Rule 5.7, the relevant information and Tables required for previously announced results under the JORC Code can be found in the following announcements:

• 27th May 2025 - “High Grade Gold Copper Acquisition – Amended”.
• 3rd September 2025 – “Completion of Maiden Fieldwork Programme - Additional Information”
• 25th September 2025 – “High Grade Gold Hook Lake Project Expanded”
• 23rd October 2025 – “14.5 g/ton at Jaws and Significant Expansion Potential”
• 27th October 2025 – “Up to 16.75 g/t Gold and 2,660g/t Silver from Untested Targets”

Competent Persons Statement

The information in this report that relates to historical estimates and exploration results is an accurate representation of the available data and studies for the Project, is based on, and fairly represents, information either compiled or reviewed by Mr Kell Nielsen who is a Fellow of the Australasian Institute of Mining and Metallurgy. Mr Nielsen is a Director and Chief Executive Officer of Manhattan Corporation Limited. Mr Nielsen has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person (CP) as defined in the 2012 Edition of the Joint Ore Reserves Committee (JORC) “Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves”. Mr Nielsen consents to the inclusion in the announcement of the matters based on his information in the form and context in which it appears.

Forward looking statements

This announcement may contain certain ‘forward looking statements’ which may not have been based solely on historical facts, but rather may be based on the Company’s current expectations about future events and results. Forward-looking statements contained in this announcement include, but are not limited to: completion of the Proposed Transaction; the strengths, characteristics and potential of the Company following completion; timing and receipt of shareholder approvals; discussion of future plans, projects and objectives.