Surge Copper Delivers Geotechnical Results Supporting Pit Design and Resource Growth at Berg PFS-level geotechnical program completed under budget; results support steeper pit walls, lower strip ratio, and highlight resource expansion potential

PO Box 10351 888-700 West Georgia Street, Vancouver, BC, Canada, V7Y 1G5

www.surgecopper.com

TSX-V: SURG

OTCQB: SRGXF

Frankfurt: G6D2

Telephone: +1 (604) 781-5454

Email: [email protected]

May 8, 2025

NEWS RELEASE

Surge Copper Delivers Geotechnical Results Supporting Pit Design and Resource

Growth at Berg

PFS-level geotechnical program completed under budget; results support steeper pit walls,

lower strip ratio, and highlight resource expansion potential

May 8, 2025, Vancouver, British Columbia – Surge Copper Corp. (TSXV: SURG) (OTCQB:

SRGXF) (Frankfurt: G6D2) (“Surge” or the “Company”) is pleased to report results from a

geotechnical drilling and analysis program completed in 2024 at its 100%-owned Berg Project in

central British Columbia. The program, designed to support future open pit mine design studies,

included six geotechnical drill holes (BRG24-246 to 251 ) targeting both the central and outer

areas of the deposit.

Highlights

• Completed PFS-level geotechnical data collection on time and under budget

• Acoustic Televiewer surveys completed on seven holes to support a detailed geologic fault

model

• 79 rock strength tests completed with spatial coverage across the conceptual open pit

• Delivery of Slope Design Criteria with inter-ramp angles ranging from 39 to 46

degrees, enabling more confident mine design inputs and indicating potential for an

overall reduction in strip ratio compared to the PEA design (inter-ramp angles ranged

from 30 to 49 degrees)

• Mineralization encountered in central stock and on outer deposit margins suggests

resource expansion potential and possible strip ratio improvements

• Hole BRG24-246 (central Berg Stock): 184 metres grading 0.30% CuEq (0.26% copper,

0.008% molybdenum, 1.50 g/t silver, and 0.016 g/t gold) from 6 metres , converting

expected waste into mineralized material and highlighting further exploration potential

within the central Berg Stock

• Hole BRG24-251 (eastern margin): 136 metres grading 0.19% CuEq (0.16% copper,

0.002% molybdenum, 2.16 g/t silver, and 0.016 g/t gold) , demonstrating low -grade

potential along pit edges and highlighting potential to further improve the low strip ratio at

Berg with additional drilling

Surge Copper Corp. 2

• Silver-rich base-metal veins encountered in holes BRG24-248, 249, and 250 , indicating

potential for precious metal mineralization peripheral to the porphyry system. Notably, hole

BRG24-249 returned:

o 2 metres grading 83.9 g/t Ag, 0.27 g/t Au, and 0.40% Cu from 130 metres

o 4 metres grading 69.7 g/t Ag, 0.56 g/t Au, and 0.34% Cu from 240 metres

Leif Nilsson, Chief Executive Officer, commented: “The completion of this geotechnical program

represents another important de -risking milestone for the Company. The results confirm the

geotechnical suitability of the Berg deposit for the open pit design we have envisioned. Importantly,

because Berg is a single, cohesive open pit, rather than a collection of separate mining areas,

these results meaningful ly strengthen the project’s low -complexity, low -risk profile. Our team

delivered the program efficiently, ahead of schedule and under budget, and we now ha ve the

critical data in hand to advance PFS-level engineering design. Additionally, the mineralization

encountered on the margins and in the central stock points to further upside in our resource

model.”

The geotechnical program was designed and implemented in collaboration with BGC Engineering

(“BGC”) to Pre-Feasibility Study ( “PFS”) standards. Five of the six holes were drilled on the

margins of the deposit and one within the central Berg Stock. The primary objectives were to

gather data on structural geology, rock mass quality, and hydrogeological conditions within a

conceptual pit shell.

Each drill hole was subjected to acoustic televiewer logging, hydrogeological testing, and

geotechnical logging. Vibrating wire piezometers were installed, and laboratory testing included

compressive strength testing on selected core samples. These efforts enabled BGC to develop a

slope stability model and provide geomechanical recommendations for pit slope angles.

The resulting Slope Design Criteria table outlines recommended inter-ramp angles by rock type

and structural domain, ranging from 39 to 46 degrees, allowing Surge’s mining engineering team

to advance PFS -level open pit design with increased confidence. The updated fault model

incorporates 2024 drilling data alongside historical records to better define transitions between

rock types and improve the geotechnical resolution of the key structural features.

With a minimum catch berm width of 8 metres and maximum inter-ramp height of 150 metres, the

pit wall geometry is expected to allow for steeper slopes and a more consistent inter-ramp profile.

This may contribute to a lower overall strip ratio and more efficient pit development over the life

of mine.

Table 1 below summarizes inter-ramp slope angles used for engineering design, varying by rock

type and structural domain. These criteria reflect updated PFS-level assumptions and are derived

from both empirical and analytical stability modeling.

Additional scoped work by BGC included drone photogrammetry of areas at the top of the

conceptual pit to inform design of future surface infrastructure, including waste rock storage areas

identified in the 2023 Berg Preliminary Economic Assessment (“PEA”).

Mark Wheeler, VP Projects, commented: “ This program was a major step forward in advancing

the engineering understanding of the Berg deposit. The geotechnical results provide the data

density and quality required for robust pit slope design, while the updated fault model significantly

enhances o ur structural interpretation. Working closely with BGC, we achieved the program

Surge Copper Corp. 3

objectives efficiently and cost -effectively, and we’re now well -positioned to incorporate these

results into the next phase of mine-design.”

Importantly, while the primary purpose of drilling was geotechnical in nature, several holes

intersected low-grade mineralization and silver-rich base-metal veins, which may support future

resource expansion and conversion.

Figure 1. Berg drill hole location map showing 2024 drill holes and the location of cross

section A – A’.

Surge Copper Corp. 4

Figure 2. Open pit Slope Design Criteria domain and sector map showing kinematic

sector and maximum inter-ramp angles.

Surge Copper Corp. 5

Figure 3. Cross section A – A’ showing geotech drill holes BRG24-246, BRG24-251, and

253. See Figure 1 for section location.

Table 1. Summary of Slope Design Criteria by Rock Type

Rock Type

Inter-Ramp Angle

Range (°)

Bench Face

Angle (°)

Max Inter-Ramp

Height (m)

Andesite 40-44 70 150

Diorite 39-46 70 150

Berg Stock 38-46 70 150

Supergene 35 70 90

Leach Cap (sparse and thin, not

used in final pit)

33 70 15

Note: Slope angles were derived using a combination of regulatory bench geometries,

kinematic stability analysis, and 2D limit equilibrium modeling.

Surge Copper Corp. 6

Figure 4. Drill rig completing geotechnical hole BRG24-250 in far northeast of conceptual

pit. This hole encountered multiple intervals of silver-rich, base-metal veins (see Table 2).

Surge Copper Corp. 7

Figure 5. West-facing view over Berg camp, with drill rig in foreground completing

geotechnical hole BRG24-246 which intersected 184 metres grading 0.26% copper,

0.008% molybdenum, 1.50 g/t silver, and 0.016 g/t gold from 6 metres.

Surge Copper Corp. 8

Figure 6. Drill rig mobilized between two geotechnical holes at the Berg Project.