Mr. Nick Rodway reports

CORE SILVER SUMMARIZES HIGH-GRADE SILVER & COPPER PORTFOLIO & COMMENCES DRILLING

Core Silver Corp. has provided a summary of high-grade silver and copper assay results from the Blue property and announce the commencement of drilling across the Laverdiere and Silver Lime projects in the Atlin mining district of British Columbia.

Core Silver's president and chief executive officer, Nick Rodway, commented: "We are well-funded and pleased to share an overview of the progress we've made over the past few years at both the Laverdiere and Silver Lime projects. The drill is now turning and focused on expanding the mineralization footprint of these two projects. We look forward to providing regular updates as the program advances. Additionally, this news release includes a clickable link to a supplementary slideshow featuring maps and visuals to complement the summary provided here."

Highlights

• Drilling has commenced at the Laverdiere copper project and will be followed by drilling at the Silver Lime polymetallic project.

Laverdiere project (Valley zone and Main zone):

• Surface sampling (2022) returned up to 3.24 per cent Cu, 82 grams per tonne Ag (silver), 0.56 g/t Au (gold), 0.053 per cent Mo (molybdenum).
• 2022 drilling highlights:
  • LAV22-001 (French Adit): 267.05 m of 0.21 per cent CuEq (copper equivalent), including 48.54 m of 1.02 per cent CuEq from 31.46 m;
  • LAV22-006 (North Adit): 107.38 m of 0.31 per cent CuEq from 144.62 m;
  • LAV22-002 (French Adit): 223 m of 0.20 per cent CuEq, including 54 m of 0.31 per cent CuEq and 24.42 m of 0.50 per cent CuEq;
  • LAV22-005 (South Adit): 83.22 m of 0.27 per cent CuEq from 6.9 m.

Silver Lime project:

• High-grade carbonate replacement and skarn mineralization across a nine-kilometre-by-10-kilometre corridor.
• Drilling highlights:
  • SLM22-011 (Grizzly target): 1.16 m of 1,145 g/t Ag, 23.2 per cent Pb (lead), 23.5 per cent Zn (zinc), 0.52 per cent Cu (within 5.64 m of 254 g/t Ag, 5.1 per cent Pb, 4.8 per cent Zn);
  • SLM23-048 (Gally target): 8.0 m of 39 g/t Ag, 3.5 per cent Pb plus Zn, 0.18 per cent Cu from surface, including 1.3 m of 845 g/t Ag, 31.3 per cent Pb plus Zn, 1.10 per cent Cu;
  • SLM23-028 (Pete's target): 6.4 m of 159 g/t Ag, 8.7 per cent Pb, 7.7 per cent Zn, 0.23 per cent Cu from 27.43 m;
  • SLM24-060 (Whaleback skarn): 11.78 m of 10.6 per cent Zn, 0.36 per cent Cu, 16 g/t Ag from surface;
  • SLM22-001 (Jackie target): 21.65 m of 23 g/t Ag, 1.0 per cent Zn, 1.2 per cent Pb, 0.08 per cent Cu, including 1.25 m of 215 g/t Ag, 9.9 per cent Zn, 8.9 per cent Pb from surface;
  • SLM23-042 (Jackie target): 4.55 m of 116 g/t Ag, 11.7 per cent Pb plus Zn, 0.41 per cent Cu, including 1.10 m of 215 g/t Ag, 22.1 per cent Pb plus Zn;
  • SLM23-038 (Jackie target): 2.20 m of carbonate replacement mineralization grading 187 g/t Ag, 23.9 per cent Pb plus Zn, 0.53 per cent Cu from 17.05 m;
  • Historic surface sampling returned up to 4,870 g/t Ag in galena-bearing quartz veins.
• The company is fully financed for its 2025 program and will provide regular updates as drilling progresses.

Core Silver has defined two main project areas at the Blue property that contain high-grade and silver-rich massive sulphide skarn, carbonate replacement, and sheeted base and precious metal vein occurrences associated with copper-silver-molybdenum-bearing porphyries. The combined geologic histories of these areas cover over 125 Ma (million years ago) of magmatic-hydrothermal activity associated with prospective Jurassic (about 186 Ma), Cretaceous (about 106 Ma) and Eocene (about 58 Ma) aged intrusions.

The Laverdiere copper project

In the late 1800s, the Laverdiere brother's discovered high-grade magnetite and copper skarn along the western flank of the Llewellyn fault zone (LFZ). Historical adits driven into the massive and high-grade copper skarn at the Main zone in the early 1900s returned up to 1.20 per cent Cu over 27 m, whereas historic drill assays report 175 m of 0.24 per cent Cu obtained 100 m north of the French Adit in 19742.

Two thousand twenty-two diamond drilling conducted by Core Silver confirmed high-grade copper skarn and porphyry mineralization for over one km following the north-south trend of the Llewellyn fault along the eastern edge of the Laverdiere porphyry. The top drill intercepts obtained from the Main zone in 2022 include:

• LAV22-006 (North Adit) -- 107.38 m of 0.31 per cent CuEq (0.11 per cent Cu, 0.023 per cent Mo, 0.9 g/t Ag, 0.02 g/t Au) from 144.62 m;
• LAV22-001 (French Adit) -- 267.05 m of 0.21 per cent CuEq (0.17 per cent Cu, one g/t Ag, 0.04 g/t Au) from surface, including 48.54 m of 1.02 per cent CuEq (0.90 per cent Cu, six g/t Ag, 0.11 g/t Au) from 31.46 m depth;
• LAV22-002 (French Adit) -- 223 m of 0.20 per cent CuEq (0.11 per cent Cu, 0.006 per cent Mo, two g/t Ag, 0.05 g/t Au) from 15 m depth, including 54 m of 0.31 per cent CuEq (0.19 per cent Cu, 0.002 per cent Mo, three g/t Ag, 0.12 g/t Au) from 173 m depth, and 24.42 m of 0.50 per cent CuEq (0.32 per cent Cu, 0.005 per cent Mo, four g/t Ag, 0.12 g/t Au) from 207.23 m depth;
• LAV22-005 (South Adit) -- 83.22 m of 0.27 per cent CuEq (0.12 per cent Cu, 0.016 per cent Mo, 0.8 g/t Ag, 0.03 g/t Au) from 6.9 m depth.

CuEq: Assay results are presented as uncut weighted averages. Interval widths represent drilled HQ core lengths and true width is unknown currently. Metal prices used to calculate Cu equivalent (per cent CuEq) are Au $1,775.00/oz, Ag $20.00/oz and Cu $3.50/lb. All values are reported in Canadian dollars and do not consider metal recoveries. The equation used to calculate CuEq is as follows: CuEq per cent equals Cu per cent plus (Au g/t (Au $ per oz/31.1034768)/(Cu $ per pound 22.04623)) plus (Ag g/t (Ag $ per oz/31.1034768)/(Cu $ per Ib 22.04623)).

The first target of the 2025 drilling program will focus on the Valley zone. The Valley zone represents a highly prospective area of increased hydrothermal activity and high-grade porphyry copper mineralization located two km southwest and 700 m up elevation from the Main zone that was drill tested in 2022. Both high-grade zones remain open for expansion in multiple directions.

At the Valley zone, a series of sheeted mineralized porphyry veins, veinlets and fractures hosted in granodiorite porphyry have been mapped and sampled over a one-kilometre east-west trend that historically returned up to 3.24 per cent Cu (with 82 g/t Ag, 0.56 g/t Au and 0.053 per cent Mo; D935042) and 0.32 per cent Mo (with 1.03 per cent Cu, four g/t Ag; D935043) in 2022 in bornite-bearing quartz veins, and 0.83 per cent Cu, 47 g/t Ag, 0.44 g/t Au and 0.007 per cent Mo in 2024 (F422231).

Veins hosting significant Cu-Mo-Ag-Au mineralization measure up to 20 centimetres thick along the Valley fault and are concentrated in an area of increased structural complexity.

Mineralized porphyry veins sampled at surface and in 2022 drill core show an overall increase in grade toward the Valley fault -- interpreted as the location of a high-grade porphyry centre.

The Silver Lime polymetallic project is a drill-ready project containing exposed Zn-Ag-Pb-Cu plus or minus Au mineral occurrences that span the entire porphyry-skarn-carbonate replacement-epithermal continuum over a nine km by 10 km area.

During the inaugural diamond drilling program in 2022, drilling was designed to follow up on high-grade surface samples collected in the previous year that returned 672 g/t Ag, 14.2 per cent Pb, 1.7 per cent Zn and 1.55 per cent Cu (152137). Drill hole SLM22-011 intersected 1.16 m of 1,145 g/t Ag, 23.2 per cent Pb, 23.5 per cent Zn, 0.52 per cent Cu and 0.37 g/t Ag of textbook carbonate replacement mineralization within a broader interval of 5.64 m of 254 g/t Ag, 5.1 per cent Pb, 4.8 per cent Zn, 0.11 per cent Cu and 0.12 g/t Au from 57.36 m depth.

Prospecting in 2022 approximately 500 m southwest of Grizzly identified high-grade, silver-rich carbonate replacement mineralization at the Gally target that returned up to 1,115 g/t Ag with 8.7 per cent Pb, 12.2 per cent Zn, 1.10 per cent Cu and 0.10 g/t Au (D935050) and is traceable for 150 m along strike. In 2023, silver-rich massive sulphide at the Gally target was exposed and drill tested and returned impressive near-surface intercepts that returned 8.0 m of 39 g/t Ag, 3.5 per cent Pb plus Zn, and 0.18 per cent Cu from surface, including 1.30 m of 845 g/t Ag, 31.3 per cent Pb plus Zn and 1.10 per cent Cu, including 0.50 m of 1,030 g/t Ag, 32.4 per cent Pb plus Zn and 1.16 per cent Cu in drill hole SLM23-048.

Exposed high-grade massive sulphide carbonate replacement and contact skarn mineralization was also drill tested at the Pete's target in 2023, located approximately 2.3 km northwest of the Gally target. Drilling in this area was designed to test the depth extent of silver-rich mineralization identified at surface in 2022 that returned 8.0 m of 250 g/t Ag, 12.1 per cent Pb, 7.5 per cent Zn and 0.33 per cent Cu in channel sampling. SLM23-028 returned 6.4 m of 159 g/t Ag, 8.7 per cent Pb, 7.7 per cent Zn and 0.23 per cent Cu from 27.43 m depth, including 0.57 m of 301 g/t Ag, 11.5 per cent Pb, 10.7 per cent Zn and 0.31 per cent Cu and drilling efforts extended mineralization along strike for 120 m.

In 2024 at the Sulphide City target area, drillhole SLM24-060 intersected a high-grade massive zinc-copper skarn grading 10.6 per cent Zn, 0.36 per cent Cu and 16 g/t Ag over 11.78 m from surface at the Whaleback skarn. An additional drill hole SLM24-061, collared from the same location intersected 39.9 m of 2.5 per cent Zn, 0.13 per cent Cu and 5.1 g/t Ag including 10.5 m of 7.8 per cent Zn, 0.25 per cent Cu and 10 g/t Ag from surface. Drill hole SLM22-013, completed in 2022, intersected 0.53 m of high-grade zinc skarn grading 9.0 per cent Zn directly below the 2024 skarn intersections and indicates continuity in the high-grade Zn skarn mineralization at Whaleback to approximately 120 m true depth.

The Whaleback Zn-Cu skarn forms a 250 m long mineralized trend with the Gally target. This trend tracks metal zonation outward from the Sulphide City porphyry centre to Zn-Cu-Ag-rich massive sulphide contact skarn at Whaleback and to Ag-Zn-Cu-Pb-rich massive sulphide carbonate replacement and skarn mineralization at Gally.

In 2024, the North Gold prospect was revisited and prospecting uncovered sheeted quartz-arsenopyrite veins measuring up to 50 cm thick that graded up to 1.74 g/t Au and 111 g/t Ag (F422245), with most samples collected assaying greater than 0.25 g/t Au and greater than 10 g/t Ag. These samples were collected within a 120 m wide zone at North Gold (six km north of the Sulphide City porphyry centre) and has been mapped for approximately 600 m along strike and remains open for expansion.

Additional base and precious metal vein occurrences located outboard of the porphyry-skarn-carbonate replacement mineralization at Silver Lime include: The Amp, Falcon and Pike Valley targets. Veins sampled in these areas have graded upwards of 931 g/t Ag with 1.17 g/t Au (152076) and 689 g/t Ag with 14.5 per cent Pb, 17.6 per cent Zn and 0.17 per cent Cu (152056) at Amp; 975 g/t Ag with 6.75 g/t Au and 1.1 per cent Pb (88390) and 2641 g/t Ag, 2.5 per cent Pb, 3.3 per cent Zn, 0.15 per cent Cu and 3.67 g/t Au (88339) at Falcon; and 260 g/t Ag, 6.5 per cent Pb, 3.8 per cent Zn, 0.10 per cent Cu and 0.75 g/t Au (F421207) at Pike Valley.

The Jackie target is situated within the Silver Lime project and contains some of the best high-grade results collected at the Blue property to date. The multigenerational mineralization styles at the Jackie target are influenced by the Eocene Sulphide City porphyry system, as well as an extensive Cretaceous age mafic intrusion and include massive Zn-Ag-Cu skarn and carbonate replacement mineralization -- some containing significant amounts of Te (tellurium), Ga (gallium) and Bi (bismuth); argentiferous manganese oxide mineralization (AMOM); and a wide variety of base and precious metal-bearing epithermal veins.

Drilling at the Jackie target in previous years has intersected multiple massive sulphide horizons over impressive widths. In 2022, drill hole SLM22-001 intersected 21.65 m of 23 g/t Ag, 1.0 per cent Zn, 1.2 per cent Pb and 0.08 per cent Cu from surface, including 1.25 m of 215 g/t Ag, 9.9 per cent Zn, 8.9 per cent Pb and 0.36 per cent Cu.

Seven out of eight diamond drill holes completed at Jackie in 2023 intersected massive-to-semi massive sulphide mineralization. SLM23-042 returned 4.55 m of 116 g/t Ag, 11.7 per cent Pb plus Zn and 0.41 per cent Cu, including 1.10 m of 215 g/t Ag with 22.1 per cent Pb plus Zn, and 0.24 per cent Cu from surface, and 1.25 m of 198 g/t Ag, 20.8 per cent Pb plus Zn and 1.04 per cent Cu from 2.10 m depth. Drill hole SLM23-038 intersected 2.20 m of carbonate replacement mineralization from 17.05 m depth grading 187 g/t Ag, 23.9 per cent Pb plus Zn and 0.53 per cent Cu, including 1.15 m of 201 g/t Ag, 25.7 per cent Pb plus Zn and 0.52 per cent Cu.

Additional drill holes completed at Jackie in 2023 intersected steep gold-bearing fugitive calcite veins that graded up to two m of 3.10 g/t Au within 10 m of 0.32 g/t Au between 40 m and 80 m drilled depths.

Historic surface samples collected from epithermal veins at the Jackie target have assayed up to 4,870 g/t Ag with 0.45 per cent Cu, 1.2 per cent Zn and 0.14 g/t Au (85855) in galena-bearing quartz veins. In 2024, similar sheeted and massive galena-pyrite-bearing quartz veins were observed cross-cutting a layered mafic intrusion at the Jackie target returned 216 g/t Ag, 0.11 per cent Cu, 12 per cent Pb, 115 ppm Te and 10.8ppm Ga (F422181). The intrusion and similar veining were intersected at 190.70 m depth in 2022 in hole SLM22-004 and returned 46.7 g/t Ag, 0.4 per cent Zn, 0.7 per cent Pb and 0.19 per cent Cu from 190.70 m depth, including 2.0 m of 126 g/t Ag, 0.8 per cent Zn, 2.0 per cent Pb and 0.60 per cent Cu, and 0.62 m of 338 g/t Ag, 2.1 per cent Zn, 5.8 per cent Pb and 1.55 per cent Cu from 196.38 m depth, indicating continuity from surface.

Massive galena and pyrite dominant carbonate replacement mineralization, sampled just southeast of the epithermal vein showing at Jackie in 2024, returned an impressive 767 g/t Ag, 1.12 per cent Cu, 48.3 per cent Pb and 1.7 per cent Zn (F422175), whereas AMOM mineralization identified and sampled to the northeast of the 2023 drilling area returned 1,092 g/t Ag with 0.25 g/t Au (F421241) and is traceable along strike for approximately 100 m.

Drilling at Silver Lime continues to demonstrate excellent continuity, scale and grade across multiple mineralized centres. With over 85 per cent of holes hitting target mineralization, the system remains open in all directions.

The company is currently drilling at the Laverdiere copper project while planning the next phase of 2025 drilling and surface expansion work for both projects.

National Instrument 43-101 disclosure

Nicholas Rodway, PGeo (licence No. 46541) (permit to practice No. 100359) is president, chief executive officer and director of the company, and qualified person as defined by National Instrument 43-101 -- Standards of Disclosure for Mineral Projects. Mr. Rodway has reviewed and approved the technical content in this release.

About Core Silver Corp.

Core Silver is a Canadian mineral exploration company focused on the acquisition and development of mineral projects in British Columbia, Canada. The company currently holds 100-per-cent ownership in the Blue property mineral tenure, which covers a land area of 114,074 hectares (about 1,140 square kilometres). The project lies within the Atlin mining district, a well-known gold mining camp located in the unceded territory of the Taku River Tlingit First Nation and the Carcross/Tagish First Nation. The Blue property hosts a major structural feature known as the Llewellyn fault zone (LFZ). This structure is approximately 140 km in length and runs from the Tally-Ho shear zone in Yukon, south through the Blue property to the Alaskan Panhandle Juneau ice sheet in the United States. Core Silver believes that the south Atlin Lake area and the LFZ has been neglected since the last major exploration campaigns in the 1980s. The LFZ plays an important role in mineralization of near-surface metal occurrences across the Blue property mineral tenure. The past 50 years have seen substantial advancements in the understanding of porphyry, skarn and carbonate replacement type deposits both globally and in British Columbia's Golden Triangle. The company has leveraged this information at the Blue property mineral tenure to tailor an already proven exploration model and believes this could facilitate a major discovery. Core Silver is excited to become one of Atlin mining district's premier explorers where its team believes there are substantial opportunities for new discoveries and development in the area.

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