HM Exploration Discovers New Blind Massive Sulphide Lens at Lewis Pilley’s Project
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
HM Exploration Discovers New Blind Massive Sulphide Lens at
Lewis Pilley’s Project
Vancouver, June 29, 2026 – HM Exploration Corp. (“HM Exploration”, “HM” or the “Company”)
(CSE:HM) (FSE:X5H) (OTCQB:HMEXF) is pleased to announce that it has completed an additional
three holes as part of the phase one drilling program (the “Program”) at the Company’s Lewis
Pilley’s Project (the “Project”), located in Newfoundland, Canada.
Figure 1: Drill core (upper zone) in hole PI-26-008 from 16.12 – 24.78m downhole. Detailed photo from core box, outlined in blue,
highlighting sections of massive chalcopyrite + pyrite sulphide mineralization (A & B). See Table 2 for visual descriptions.
The three holes in this press release represent an additional 544.27 metres for a total drilled
meterage of 1,632.27m of a planned minimum 2,500 metres of diamond drilling.
Highlights:
• Holes six, seven, and eight have successfully intersected massive sulphide including a
new blind discovery of massive sulphide mineralization at a drill core depth of ~155 m.
See additional pictures of drill core below.
• Multiple mineralized intervals encountered displaying varying types of mineralization
ranging from disseminated – semi-massive – massive sulphide, including:
o PI-26-006
From 11.43 – 13.62m down-hole; 2.19m drilled length.
o PI-26-007
From 7.00 – 28.00m down-hole; 21.00m drilled length.
From 176.85 – 179.00m down-hole; 2.15m drilled length.
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
o PI-26-008
From 15.00 – 28.00m down-hole; 13.00m drilled length. (Figure 1)
From 163.45 – 170.22m down-hole; 6.77m drilled length.
• The identification of a second sulphide lens below the previously recognized upper debris-
flow horizon supports the interpretation of a vertically extensive VMS system and provides a
new exploration target for follow-up drilling.
• Assays pending; HM looks forward to providing updates as drilling continues.
“While we were expecting to see significant mineralization below the exposed massive sulphide
horizon at the Clifford Jones trench, the intersection of the lower-lens came as a welcomed new
exciting discovery” said Nick Ryan, Chief Geologist with HM Exploration Corp. “The discovery of a
second mineralized lens demonstrates that the system is more extensive than previously
recognized and supports the potential for multiple stacked sulphide horizons. We look forward to
receiving laboratory assays back and delineating the extents of this new discovery with subsequent
drilling.”
Drilling was focused on evaluating the continuity of the mineralized system below known surface
showings and along strike of Clifford Jones Zone (the “Zone”) to improve the Company’s
understanding of the geological controls on mineralization (Figure 2). Visual observations from
drilled holes indicate that the upper targeted copper-bearing debris flow was successfully
intersected, with zones of alteration and massive to semi-massive sulphide mineralization
observed in the drill core.
Drill holes 7 and 8 have successfully intersected a new lower mineralized sulphide lens that was
previously undiscovered. The lower-lens appears more massive indicating that the geometry of this
lens may assist with vectoring towards the source vent(s) as depicted in Figure 3. Core samples
have been submitted to the laboratory for analysis. Assay results will be released once they have
been returned to the Company.
All three holes from this release intersected a wide range of massive, semi-massive and
disseminated sulphide mineralization over the following drill core lengths*:
• PI-26-006
o From 11.43 – 13.62m down-hole; 2.19m drilled length.
• PI-26-007
o From 7.00 – 28.00m down-hole; 21.00m drilled length. (Figure 4)
o From 155.31 – 155.97m down-hole; 0.66m drilled length. (Figure 5)
o From 176.85 – 179.00m down-hole; 2.15m drilled length. (Figure 5)
• PI-26-008
o From 7.55 – 12.52m down-hole; 4.97m drilled length.
o From 15.00 – 28.00m down-hole; 13.00m drilled length. (Figure 1)
o From 163.45 – 170.22m down-hole; 6.77m drilled length. (Figure 6)
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
Mineralization can be described as clast-dominated debris zones consisting of sub-angular to
angular fragments of massive sulphide (~85% of intercept) composed of Cpy + Py ± Sph ± Gn
suspended in interstitial fine-grained disseminated sulphides (Py + Cpy ± Sph ± Gn) and milled
felsic ± mafic rock. Matrix-dominated debris flow composed of fragments of sub-rounded to
angular clasts of massive sulphide (Py + Cpy ± Sph ± Gn) and felsic ± mafic lithic fragments
suspended in a matrix of fine-grained sulphide (Py + Cpy ± Sph ± Gn) and milled felsic ± mafic rock.
More detailed classifications for individual intercepts are referenced in Table 2 below*.
* The Company cautions that the presence of visible sulphides and visual estimates of mineral abundance are not indicative of
grade and should not be considered a substitute for laboratory analysis. Assay results are pending.
Figure 1: Plan map of 2026 diamond drilling at the Clifford Jones (Bull Road) Zone. ‘This Release’ drill collars shown as red circles ; ‘Past Release’
drill collars shown as white circles; Historic drill collars shown as black circles. Currently the upper lens (UL) and lower lens (LL) mineralization
remains open along strike and at depth.
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
Figure 2: Conceptual VMS model illustrating the interpreted position of the newly identified lower lens relative to the upper debris fl ow mineralization. Mineralization intersected at the
Clifford Jones Zone appears to be transported from source; however, the angularity of the massive -sulphide clasts may indicate limited transport distance from the source vent(s) (Modified
after Kirkham and Thurlow, 1987).
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
Figure 3: Drill core (upper zone) in hole PI-26-007 from 13.00 – 21.33m downhole. Detailed photo from core box, outlined in blue, highlighting sections of massive sulphide mineralization.
See Table 2 for visual descriptions.
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
Figure 4: Drill core (lower zone) in hole PI-26-007 from 154.23 – 158.47m and 175.51 – 179.53m downhole. Detailed photo from core box, outlined in blue, highlighting sections of massive
sulphide mineralization. See Table 2 for visual descriptions.
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
Figure 5: Drill core (lower zone) in hole PI-26-008 from 160.17 – 168.73m downhole. Detailed photo from core box, outlined in blue, highlighting sections of massive sulphide mineralization.
See Table 2 for visual descriptions.
HM Exploration Corp.
#1450 – 789 West Pender Street
CSE: HM | FSE: X5H | OTCQB: HMEXF
Table 1: 2026 drill collar data; Coordinates reported in NAD83 - Zone 21N.
Hole_ID East North Azi Dip Depth (m) Assay Status
PI-26-001 593296 5485437 255 -45 187.00 Pending
PI-26-002 593269 5485422 75 -45 199.00 Pending
PI-26-003 593269 5485422 75 -65 199.00 Pending
PI-26-004 593269 5485422 90 -45 151.00 Pending
PI-26-005 593281 5485460 255 -45 352.00 Pending
PI-26-006 593281 5485460 255 -65 133.00 Pending
PI-26-007 593264 5485472 255 -45 191.27 Pending
PI-26-008 593264 5485472 255 -60 220.00 Pending
Table 2: Mineralized interval descriptions.
Hole_ID From_m To_m Length_m Comments
PI-26-006 11.43 13.62 2.19
Matrix-dominated debris flow composed of fragments of
sub-rounded to angular clasts of massive sulphide (Py +
Cpy ± Sph ± Gn) and felsic ± mafic lithic fragments
suspended in a matrix of fine-grained sulphide (Py + Cpy
± Sph ± Gn) and milled felsic ± mafic rock
PI-26-007
7.00 10.00 3.00 Predominantly fine-grained disseminated mineralization
(Py + Cpy ± Sph ± Gn) observed in matrix
10.00 17.00 7.00
Matrix-dominated debris flow composed of fragments of
sub-rounded to angular clasts of massive sulphide (Py +
Cpy ± Sph ± Gn) and felsic ± mafic lithic fragments
suspended in a matrix of fine-grained sulphide (Py + Cpy
± Sph ± Gn) and milled felsic ± mafic rock
17.00 19.00 2.00
Clast-dominated debris zones consisting of sub-rounded
to angular fragments of massive sulphide (~85% of
intercept) composed of Cpy + Py ± Sph ± Gn suspended
in interstitial fine-grained disseminated sulphides (Py +
Cpy ± Sph ± Gn) and milled felsic ± mafic rock
19.00 22.00 3.00
Matrix-dominated debris flow composed of fragments of
sub-rounded to angular clasts of massive sulphide (Py +
Cpy ± Sph ± Gn) and felsic ± mafic lithic fragments
suspended in a matrix of fine-grained sulphide (Py + Cpy
± Sph ± Gn) and milled felsic ± mafic rock
22.00 24.18 2.18
Clast-dominated debris zones consisting of sub-rounded
to angular fragments of massive sulphide (~85% of
intercept) composed of Cpy + Py ± Sph ± Gn suspended