Monument Mining Limited (TSX-V: MMY) (FSE: D7Q1) is pleased to announce the results of an additional fifteen (15) holes from its Buffalo Reef/Felda areas and updates drilling activities under its mine expansion drilling program at the Selinsing Gold Mine including Selinsing and Buffalo Reef gold projects, located in Pahang State on the Central Gold Belt of Western Malaysia.

Ms. Cathy Zhai, President and CEO of Monument Mining, commented: “Some pleasing results are starting to be returned from the BRC2/BRC3 gap drilling with downhole mineralized intercepts spanning 7-9m width and continuity between mineralized intercepts becoming evident, validating the program objectives and guiding the next round of drilling.”

Ms. Zhai continued: “Expansion drilling is targeting to increase gold resources and potentially expanded the life of mine at Selinsing Gold Mine. We have 4 drill rigs up running now and plan to increase up to 9 drill rigs to accelerate the exploration programs.”

DRILL PROGRAM HIGHLIGHTS

Results from fifteen completed drill holes of the Buffalo Reef/Felda Mine Expansion Drilling Program have been received (Appendix A), with high gold assay results returned.

Significant highlights include:

BRC2 / BRC3 Gap

• • MBRRC610:   7m @ 2.30g/t Au from 7m
  • MBRRC612:   9m @ 2.03g/t Au from 26m includes
    2m @ 4.54g/t Au from 28m and
    3m @ 2.75g/t Au from 32m
  • MBRDD616:   3.0m @ 0.66g/t Au from 57.9m
    2.6m @ 2.69g/t from 119.4m
    6.0m @ 1.51g/t Au from 129.4m
    9.0m @ 1.76g/t Au from 186.9m including
    3.5m@1.25g/t Au & 0.24%Sb from 186.9m
  • MBRDD619:   5.7m @ 1.72g/t Au from 181.5m including
    3.0m @ 4.51g/t Au & 0.28%Sb from 181.5m
  • MBRDD621:   1.5m @ 8.59g/t Au from 144.9m

BRC3 / BRC 4 Gap

• • MBRDD614:   7.3m @ 1.76g/t Au from 136.1m includes
    3.0m @ 3.35g/t from 138.9m

BRC3 Mine Down Dip

• • MBRDD618:   1.5m @ 0.36g/t Au from 17m
    2.5m @ 0.41g/t Au from 24.7m
    1.5m @ 0.5g/t Au from 39.5m
    1.7m @ 0.21g/t Au from 46.8m
    1.5m @ 0.38g/t Au from 65m
    1.6m @ 28g/t Au from 95.5m
    1.5m @ 0.25g/t Au from 108.5m
    1.0m @ 1.2g/t Au from 114.5m
    1.1m @ 0.46g/t Au from 154.4m
    1.5m @ 1.03g/t Au from 165m
    1.5m @ 0.82g/t Au from 188.9m
    3.0m @ 1.62g/t Au from 203m
    1.5m @ 1.18g/t Au from 207.5m
    1.5m @ 1.02g/t Au from 215.7m

Note: the reported intervals are downhole lengths and do not represent true widths. True widths will be determined once geological modelling has been completed.

BUFFALO REEF/FELDA MINE EXPANSION DRILLING RESULTS

Buffalo Reef/Felda mine expansion drilling contains Stage 1 and Stage 2 as a part of the Selinsing gold mine expansion program. The target Area covers 115 acres of land, laying the foundation to evaluate the potential to extend the currently defined Mineral Resources and to convert the current resources to reserves that are now constrained by tenement boundaries. Success of exploration may potentially support the pit expansion at Buffalo Reef/Felda ^[1] and inform future life of mine (“LOM”) planning, subject to the tenement extension.

The expansion drilling program has been successful to date in intersecting multiple zones of gold mineralization in Stage 1 and Stage 2 targets. The program validates the Expansion Drilling strategy, by identifying continuity between gold mineralized zones in some drill holes and between drill holes and existing modelled mineralized domains which will likely result in an increased inferred mineral resource.

[1] TSX: Monument announces commencement of expansion drilling program at Selinsing Gold Mine (July 7, 2025).

Figure 1. Plan view of the Buffalo Reef Central (BRC2, BRC3 & BRC4), showing results reported this announcement (orange callouts) along with previously reported results ^[2] (white callouts). Blue symbols are holes waiting for results. Drilling is generally orientated from east to west.

STAGE 1. Buffalo Reef Gap drill results

Stage 1 Buffalo Reef/Felda Expansion drilling program focuses on evaluation of the potential resource increase to bridge the gaps between BRC2/BRC3 and between BRC3/BRC4 (Figure 2), to enable the pits to be combined and expanded, which may inform future LOM planning subject to further studies.

Figure 2. Long section A-A through Buffalo Reef Central depicting Mine Expansion target Areas (Stage 1 and Stage 2) targeted in the Mine Expansion Drilling, looking west.

 Nine (9) of the fifteen (15) holes reported in this announcement (Table 1) targeted BRC2 / BRC3 Gap and the BRC3 / BRC4 Gap.

Table 1. Buffalo Reef/Felda Mine Expansion Drilling – Stage 1 drilling results. The reported intervals are downhole lengths and do not represent true widths. True widths will be determined once geological modelling has been completed.

BRC2/BRC3 Gap Drill Results

MBRRC610, MBRRC611 and MBRRC612 (Figure 3) targeted the southern projection of known mineralization at the BRC2/BRC3 gap within the Buffalo Reef Felda tenement (Figure 4). MBRCC610 and MBRCC612 have been successful in identifying wide zones of shallow sub surface gold mineralization likely part of the western shear. MBRRC611 did not intersect mineralization and was likely collared too far to the west to intersect the structure. These intersections are an extension of a previously identified mineralized domain and demonstrate continuity with drill holes 20m to the north. The area remains open to the south and down dip.

Continuity between intersections and proximity to existing mineralized domains provides confidence that addition to the resource base is likely.

Figure 3. Cross-section through BRC2/BRC3 gap at 3810mN north (20m wide window north and south) and depicting historic drilling and recently completed MBRRC610, MBRRC611 and MBRRC612.

 Figure 4. Buffalo Reef drilling within the Buffalo Reef Felda Tenement

 BRC3/BRC4 Gap Drill Results

MBRDD612 (Figure 5), MBRRC580 and MBRRC579^[2] targeted shallow gold mineralization within the western shear of the BRC3/BRC4 Gap. Although MBRRC580 failed to intercept significant mineralization, MBRRC579 and MBRDD612 did intercept significant gold mineralization (Figure 3). Continuity between these two intercepts cannot be confirmed at this stage and will require further drilling. The intercepts occur outside of existing modelled mineralized domains the area is open to the north and poorly drilled. Further drilling is required to assess the area.

MBRDD614 targeted a zone 120m down dip of MBRDD612 and approximately 50m up dip of historic Buffalo drill holes MBRDD463 and MBRDD470, both of which intersected high grade gold mineralization (Figure 6). MBRDD603 (1m@3.96g/t Au & 3m@1.71g/t Au from 121m) ^[2] is interpreted to have intersected the same structure as MBRDD614.

Geological interpretation and modelling will be undertaken to confirm that structural and grade continuity exists between these intersections.

[2] TSX: Monument announces first 16 drill holes of Selinsing Mine Expansion Drilling Program (December 3, 2025)

Figure 5. Cross-section through BRC3/BRC4 gap at 4190mN looking north (40m wide window north and south) and depicting historic drilling and recently completed MBDD612.

Figure 6. Cross-section through BRC3/BRC4 gap at 4190mN looking north (40m wide window north and south) and depicting historic drilling and recently completed MBRRC614.

STAGE 2. Buffalo Reef/Felda Drill Results

Stage 2 Buffalo Reef/Felda Expansion drilling program focuses on mine expansion areas with potential to define new mineralized zones and structural down dip extensions to mineralization outside of the existing pit shell (Figure 2). Six (6) holes have been completed as part of Stage 2 drilling and are reported in Table 2.

Table 2. Buffalo Reef/Felda Mine Expansion Drilling – Stage 2 drilling results. The reported intervals are downhole lengths and do not represent true widths. True widths will be determined once geological modelling has been completed.

The drilling program has identified multiple mineralized structural targets for further testing through drilling. Although not all drill holes have intercepted significant mineralization the results have advanced our understanding of the target areas.

BRC2/BRC3Gap

MBRDD616 and MBRDD619 intersected multiple gold mineralized zones at the lower boundary of the expanded pit shell and approximately 60m below the expanded pit shell (approximately 100m below the BRC3 current pit floor) (Figure 7). The area is sparsely drilled, open at depth and along strike. The deepest gold intersections in both holes potentially correspond to modelled mineralized domains approximately 80m to the north. The same mineralized domain was intersected by MBRDD600, MBRDD601 and MBRDD602 (Table 3) ^[2].

Figure 7. Cross-section through Buffalo Reef Central Pit 3 at 3840mN looking north (40m wide window north and south) and depicting historic drilling and recently completed MBRDD615, MBRDD616 and MBRDD619, and 2 main mineralization targets related to the eastern and western shear zone. Drill holes annotated grey is historic Selinsing diamond drill holes.

Table 3. Results table for previously drilled holes MBRDD600, MBRDD601 and MBRDD602.

Intersections in both holes appear to have intersected the same mineralized structures but continuity cannot be confirmed between these intersections and the mineralized domains until further drilling has been undertaken.

BRC3/BRC4 Gap

MBRDD617 and MRDD618 were successful in intersecting gold mineralization in multiple intervals below the expanded pit shell (Figure 8). Although MBRDD617 (7.5m @ 0.33g/t Au at 39.9m) is a low-grade intersection it appears to correlate with the gold intersected in MBRDD618 and historic drilling MBRDD154 and MBRDD559 (Table 4). Mineralized intersections are down dip and outside of existing mineralized domains and historic Buffalo Reef drilling results.

Figure 8. Cross-section through Buffalo Reef Central Pit 3 at 4020mN looking north (40m wide window north and south) and depicting historic drilling and recently completed MBRDD618 in relation to existing drilling and mineralized domains.

 MBRDD618 intersected multiple low value gold mineralized zones. Of note, 1.6m@28g/t was intersected at 95.5m depth. This intersection may correspond to drill hole MBRDD604: 4m@3.19g/t from 99.0m ^[2] and the intersection in MBRDD559. These intersections are an opportunity target for future drilling activity.

Table 4. Results table for previously drilled holes MBRDD154 and MBRDD559.

Geological interpretation and modelling will be undertaken to confirm that structure and grade continuity exists between these intersections. Further drilling will be required to fully assess the potential of mineralization.

Assay results are yet to be received for MBRDD623, MBRDD624, MBRDD625, MBRRC626, MBRRC627, MBRRC628, MBRDD629, MBRDD630 and MBRDD631. These results will be reported once received.

DRILLING, ASSAYING AND QAQC

Monument’s in-house drilling team has been reassembled, supported by two Desco SP 6500SA rigs (350-meter depth capacity). One rig has been outfitted with a multipurpose drill head allowing to switch between reverse circulation and diamond drilling. Four outsourced drill rigs have been added for a total of six diamond drilling rigs to complete the drilling by the end of March 2026.

The sampling technique used in the drill program is half core sampling of PQ (85mm diameter) and mainly HQ (63.5mm diameter) sized diamond drill core using a core saw.

Samples are stored at the Selinsing project stores warehouse before being transported to Port Klang by Monument’s regular freight provider. The site has 24-hour security with manned guard house. Samples are shipped directly to SGS Port Klang once every week.

All samples are submitted to SGS Malaysia laboratory in Port Klang, Selangor for analysis using fire assay (FAA303), ICP (ICP40Q) analysis and CS (CSAO6V) for carbon and sulphur analysis. Pulps and coarse residue samples are returned to site for future QAQC studies.

Certified reference material (CRM) is supplied by Geostats and inserted approximately every 15m, blanks are inserted approximately every 10m. All assay results are verified by Monument staff before being entered into the Microsoft access database. All QAQC data is examined to ensure validate of the results.

All collar locations are surveyed using DGPS by Monument’s on-site survey team. Downhole surveying is conducted on all drill holes using a Trushot digital down hole survey tool, captured data is communicated wirelessly from the tool to the handheld device. Surveys are generally undertaken every 30-50m.

Drill core recovery is recorded at the time of drilling by the driller and checked during logging by onsite geology team. Core recovery is determined by measuring each 1m interval. Logging is qualitative in nature recording lithology, grain size, texture, weathering, structure, alteration, veining, sulphides etc. All holes are logged in full.

DRILL PROGRAM PROGRESS

Buffalo Reef/Felda Expansion Drilling

Buffalo Reef/Felda expansion drilling commenced on May 7^th,2025 utilizing two in-house drill rigs. In November2025, drilling was accelerated with the addition of two more drill rigs. A further two outsourced drill rigs began operations during the final week of January 2026, bringing the total to six (6) diamond drill rigs actively drilling at Buffalo Reef to meet the targeted end of March 2026 completion date. To date forty drill holes have been completed for 5,156m, with assay results received for thirty-two holes (see Appendix B); nine holes remain pending assay results.

A summary of the drilling completed to date is provided in Table 5.

The Mine Expansion Drill Program including drilling strategy and prioritization of target areas and holes will be closely monitored and reviewed regularly and may be altered accordingly. The focus of the drilling and targeted areas remains flexible so as not to disrupt mining activities. To accelerate the exploration programs, we might from time to time engage more drill rigs from four at moment up to nine pending on circumstances.

Table 5. Summary table of drilling completed to date.

Selinsing Mine Expansion Drilling Program

The Buffalo Reef / Felda Mine Expansion Drilling Program remains the priority drilling program for the operation. Selinsing Stage 1 and Stage 2 drilling will commence once diamond drilling of the Buffalo Reef / Felda program ends and rigs become available.

The Selinsing mine expansion drilling program comprises 9 drill holes for 2,100m.

Stage 1 of the Selinsing drilling program will test high-grade depth extension and local extensions to modelled gold structures within the Selinsing expanded pit shell and comprise three (3) drill holes for 480m.

Stage 2 of the Selinsing drilling program will test the Selinsing dip and strike extension of the shear-hosted gold mineralization outside of the expanded pit shell and comprise six (6) drill holes for 1,620m.

Qualified Person’s Statement

The information in this report that relates to exploration results is based on information compiled and approved by Mr. Mark Shelverton BSc (Hons), Chief Managing Geologist of the Company, who is a Member of the Australian Institute of Geoscientists and a qualified person as defined by NI43-101.

About Monument

Monument Mining Limited is an established Canadian gold producer that 100% owns and operates the Selinsing Gold Mine in Malaysia and the Murchison Gold Project in the Murchison area of Western Australia. It has 20% interest in Tuckanarra Gold Project, jointly owned by Odyssey Gold Ltd in the same region. The Company employs approximately 280 people in both regions and is committed to the highest standards of environmental management, social responsibility, including health and safety for its employees and neighboring communities and good corporate governance.