| Sun Summit Reports Significant High-Grade Gold, Silver and  Copper Mineralization from Rock Samples Across the JD Project,  Toodoggone District 
 newsfilecorp.com
 
 October 29, 2025 7:00 AM EDT | Source:  Sun Summit Minerals Corp.
 
 Vancouver, British Columbia--(Newsfile Corp. - October 29, 2025) - Sun Summit Minerals Corp. (TSXV: SMN) (OTCQB: SMREF) ("Sun Summit" or the "Company")  is pleased to report assay results from rock samples collected during a  project-wide geological mapping and prospecting program at the JD  Project, Toodoggone Mining District, north-central British Columbia.
 
 Highlights:
 
 
 "We  are pleased to report new assay data from recently completed geological  mapping and prospecting surveys from across the JD Project, including  the discovery of a very high-grade zone of copper-silver  mineralization." said Niel Marotta, CEO of Sun Summit Minerals. "This  work will greatly assist with drill target definition in conjunction  with interpretation of the 2025 IP surveys. The company is planning  further work, including additional sampling and drilling, to better  define the extent and grade of the discovered mineralization."New high-grade copper-silver discovery:  Hand trenching through gossanous soil, south of the Finn to Creek  corridor, revealed semi-massive to massive copper sulfides in a discrete  vein traced in subcrop for over 5 meters. Two samples returned very  high-grade copper and silver: 73.6% copper with 6,320 g/t silver (J506225) and 72.4% copper with 4,370 g/t silver (J506222). The strike-extent of this zone of mineralization is unknown. 
 
New priority drill target:  Systematic rock samples taken from 1980's historical trenches at Belle  North, south of the Finn to Creek corridor returned high-grade gold and  silver results: 14.2 g/t gold with 56.6 g/t silver (J506201) and 9.46 g/t gold with 43.5 g/t silver (J507946).  The Belle North vein-system has never been drill-tested and represents a  priority gold-silver target for upcoming drill programs. 
 
High-grade gold and silver mineralization along the Finn to Creek Corridor: Sampling north of the historical JD West and Schmidt showings returned high-grade gold and silver results: 43.6 g/t gold with 57.6 g/t silver (J507915) and 26.9 g/t gold with 38.9 g/t silver (J507914).  Both historical high-grade showings have not been adequately  drill-tested and represent priority gold-silver targets for upcoming  drill programs.
 
Comprehensive project-wide rock sampling:  The field program included the collection of over 650 rock samples  across the JD Project with results from 532 samples still pending. And  additional 8 samples were taken for whole rock analysis to assist with  lithogeochemical interpretation.
 
Additional drill results from the 6,864 meter drill program pending: The final batch of core samples have now been shipped to the lab with results from 20 drill holes pending. 
 
 
 Geological Mapping and Prospecting
 
 Project-wide  geological mapping and prospecting focused on advancing the geological  and structural understanding of the Finn to Creek corridor, as well as  target refinement at the Belle North, Oxide Peak, JD porphyry trend and  McClair east areas, was conducted over a 20+ day initiative. A total of  1,387 geological waypoint stations were established and over 650 rock  chip samples were collected.
 
 Table 1: Highlights of 2025 Rock Sample Geochemistry
 
 
 | Zone | Sample ID | Au (g/t) | Ag (g/t) | Cu (%) | Pb (%) | Zn (%) |  | A535 | J506225 | 0.18 | 6320 | 73.6 | 0.00 | 0.00 |  | A535 | J506222 | 0.09 | 4370 | 72.4 | 0.00 | 0.00 |  | A535 | J506214 | 0.14 | 208 | 3.6 | 0.02 | 0.00 |  | A535 | J506221 | 0.03 | 144 | 0.47 | 0.00 | 0.01 |  | A535 | J506223 | 0.00 | 20.5 | 0.88 | 0.00 | 0.01 |  | Belle North | J506201 | 14.20 | 56.6 | 0.16 | 0.58 | 0.28 |  | Belle North | J507998 | 10.70 | 12.6 | 0.02 | 0.01 | 0.00 |  | Belle North | J507946 | 9.46 | 43.5 | 0.05 | 0.40 | 0.05 |  | Belle North | J506202 | 5.72 | 7.0 | 0.03 | 0.35 | 0.11 |  | Belle North | J507949 | 3.79 | 27.8 | 0.07 | 0.72 | 0.11 |  | Belle North | J507947 | 3.38 | 6.3 | 0.02 | 0.29 | 0.25 |  | Finn to Creek Corridor | J507914 | 26.90 | 38.9 | 0.03 | 0.30 | 0.18 |  | Finn to Creek Corridor | J507915 | 43.60 | 57.6 | 0.10 | 1.80 | 0.15 |  | Finn to Creek Corridor | J507912 | 6.54 | 26.0 | 0.02 | 0.25 | 0.09 |  | Finn to Creek Corridor | J507913 | 2.55 | 26.4 | 0.02 | 0.10 | 0.05 | 
 
 Finn to Creek Corridor:  Geological mapping and prospecting along the Finn to Creek corridor was  focused on two key target areas; the historic Schmidt and JD West  zones. The Schmidt zone, 1.4 km west of the Finn Zone, consists of a  boulder train of siliceous breccias and banded quartz veins that have  historically yielded assays of up to 326 g/t Au with 1,535 g/t Ag, and  64.5 g/t Au with 6,151 g/t Ag. Sampling north of the main target area  returned 43.6 g/t gold with 57.6 g/t silver (Figures 1 and 2, Table 1).
 
 The  JD West target covers the gap between the Finn and Schmidt zones where  the potential strike-extension of the Finn zone is locally exposed in  historic trenches and has been drill tested in several, widely-spaced,  shallow holes (see  February 1, 2024  news release). The area is spatially associated with a broad  gold-in-soil geochemical anomaly and the historic Ag-Carbonate zone  where grab sampling from quartz-carbonate breccias, hosted along steeply  dipping, north-striking normal faults, yielded up to 14.1 g/t Au with  1,601 g/t Ag. Sampling ~150 meters north of the main JD West area  returned up to 26.9 g/t gold with 38.9 g/t silver (Figures 1 and 2,  Table 1).
 
 The Schmidt and JD West targets have not been adequately  drill-tested and both areas represent priority targets for future drill  programs.
 
 
  
 Figure 1. Map of the Finn to Creek Corridor showing compiled historic rock sampling gold results (see the Company's news release dated  May 2nd, 2024) and new data (Pink callouts).
 
 To view an enhanced version of this graphic, please visit:
 images.newsfilecorp.com
 
 
  
 Figure 2.  Map of the Finn to Creek Corridor showing compiled historic rock  sampling silver results (see the Company's news release dated  May 2nd, 2024) and new data (Pink callouts).
 
 To view an enhanced version of this graphic, please visit:
 images.newsfilecorp.com
 
 
  
 Figure 3: Photos of sampled hydrothermal breccias from the northern extent of the 4.5 km long Finn to Creek Corridor (Figures 1 and 2).
 
 To view an enhanced version of this graphic, please visit:
 images.newsfilecorp.com
 
 New High-Grade Copper-Silver target - A535:  Prospecting by the soil crew working on the Kadah North soil grid  discovered an area of gossanous soil approximately 3.0 km south of the  Finn to Creek corridor in an area lacking historic rock or soil  sampling. Hand trenching revealed semi-massive to massive copper  sulfides with strong malachite in a discrete vein traced in subcrop for  over five meters. Two samples returned very high-grade copper and  silver: 73.6% copper with 6,320 g/t silver (J506225) and 72.4% copper with 4,370 g/t silver (J506222).  The strike-extent of this zone of high-grade copper-silver  mineralization is unknown. Further trenching and prospecting is  warranted.
 
 
  
 Figure 4.  Map of the newly discovered A535 target and the historic Belle North  target showing compiled historic rock sampling copper results (see the  Company's news release dated  May 2nd, 2024) and new data (Pink callouts).
 
 To view an enhanced version of this graphic, please visit:
 images.newsfilecorp.com
 
 Belle North Trenches: Gold-silver  mineralization at the Belle North target (Figure 5) is hosted in a  northwest - southeast striking structural zone, traced in historic  trenching for over 200 meters. The zone is characterized by a ~20 meter  wide, northwest trending corridor of argillic alteration cored by  sulphide bearing (pyrite, galena, and sphalerite) siliceous breccias and  at least 5 parallel epithermal veins with minor barite. Historic  sampling by Manson Creek Resources in 1985 reportedly returned up to 107  g/t gold and 103 g/t silver1. Sampling of the trenches in  2025 returned up to 14.20 g/t gold with 56.6 g/t silver (J506201) and  9.46 g/t gold with 43.5 g/t silver (J507946). Based on the mapping and  sampling results, the Belle North target is considered a priority area  for future drill programs.
 
 
  
 Figure 5. Photos of the Belle North trenches showing predominate fractures and veins with sampled veins.
 
 To view an enhanced version of this graphic, please visit:
 images.newsfilecorp.com
 
 Next Steps
 
 Assay  and geochemical results from an additional 532 rock samples are  pending. The majority of the pending results are from detailed mapping  and prospecting traverses across the JD Porphyry Trend, along McClair  Creek. These results, together with soil geochemical results will be  reported once received and interpreted.
 
 All drill core samples  from the 6,864 meter, 21 hole program have now been shipped to the lab,  including the four follow-up holes northwest of previously released  CZ-25-007 (78.0 meters of 3.72 g/t gold from 30.0 meters downhole, see  the Company's news release dated  September 8, 2025).
 
 
  
 Figure 6.  Map of the Toodoggone District showing the location of the JD Project  in relation to other development and exploration projects. Data sourced  from Thesis Gold Inc., TDG Gold Corp. and Centerra Gold Inc.'s  respective corporate websites. The QP has been unable to verify the  information and that the information is not necessarily indicative to  the mineralization on the property that is the subject of the  disclosure.
 
 To view an enhanced version of this graphic, please visit:
 images.newsfilecorp.com
 
 Quality Assurance and Quality Control
 
 Rock  samples were bagged onsite and delivered to ALS Laboratories in  Kamloops, British Columbia. ALS is certified with ISO/IEC 17025:2017 and  ISO 9001:2015 accreditation from the Standards Council of Canada.
 
 Rock  samples were prepared (PREP-31) and then analysed for 48 elements by  ICP-MS on a 0.25-gram aliquot using a four-acid digestion (method  ME-MS61). Gold was analyzed by fire assay on a 30-gram aliquot with an  AES finish (Au-ICP21). Samples that returned >10 parts per million  (ppm) gold were re-analyzed by fire assay using a gravimetric finish on a  30-gram aliquot (method Au-GRA21). Overlimit samples (e.g. Ag, Cu) were  re-analyzed using an ore-grade, four-acid digestion and ICP-AES finish  (method ME-OG62). Samples that returned > 50% Cu were re-analyzed  using a 4-acide digestion and a volumetric finish (Cu-VOL61).
 
 In  addition to ALS Global laboratory QA/QC protocols, Sun Summit implements  a rigorous internal QA/QC program that includes the insertion of  duplicates, certified reference materials (standards prepared by an  independent lab) and blanks into the sample stream.
 
 Rock samples  taken while prospecting referenced in this news release are selective in  nature and collected to determine the presence or absence of  mineralization and may not necessarily reflect the true nature and grade  of the underlying mineralization.
 
 National Instrument 43-101 Disclosure
 
 This  news release has been reviewed and approved by Sun Summit's Vice  President Exploration, Ken MacDonald, P. Geo., a "Qualified Person" as  defined in National Instrument 43-101 Standards of Disclosure for Mineral Projects  of the Canadian Securities Administrators. Mr. MacDonald has verified  the data disclosed in this press release, including the sampling,  analytical and test data underlying this information that has been  collected by Sun Summit. Verification procedures include industry  standard quality control practices. Some technical information contained  in this release is historical in nature and has been compiled from  public sources believed to be accurate. The historical technical  information has not been verified by Sun Summit and may in some  instances be unverifiable dependent on the existence of historical drill  core and grab samples. Management cautions that past results are not  necessarily indicative of the results that may be achieved on the  property.
 
 Community Engagement
 
 Sun Summit is  engaging with First Nations on whose territory our projects are located  and is discussing their interests and identifying contract and work  opportunities, as well as opportunities to support community  initiatives. The Company looks forward to continuing to work with local  and regional First Nations with ongoing exploration.
 
 About the JD Project
 
 The  JD Project is located in the Toodoggone mining district in  north-central British Columbia, a highly prospective deposit-rich  mineral trend. The project covers an area of over 15,000 hectares and is  in close proximity to active exploration and development projects, such  as Thesis Gold's Lawyers and Ranch projects, TDG Gold's Baker-Shasta  projects, Amarc Resource's AuRORA project, Centerra's Gold's Kemess East  and Underground projects, as well as the past-producing Kemess open pit  copper-gold mine.
 
 The project is 450 kilometres northwest of the  city of Prince George, and 25 kilometres north of the Sturdee airstrip.  It is proximal to existing infrastructure in place to support the  past-producing Kemess mine, including roads and a hydroelectric power  line.
 
 The JD Project is in a favourable geological environment  characterized by both high-grade epithermal gold and silver  mineralization, as well as porphyry-related copper and gold  mineralization. Some historical exploration, including drilling,  geochemistry and geophysics, has been carried out on the property,  however the project area is largely underexplored.
 
 About Sun Summit
 
 Sun  Summit Minerals (TSX-V: SMN; OTCQB: SMREF) is a mineral exploration  company focused on the discovery, expansion and advancement of district  scale gold and copper assets in British Columbia. The Company's diverse  portfolio includes the JD and Theory projects in the Toodoggone region  of north-central B.C., and the Buck Project in central B.C.
 
 Further details are available at  www.sunsummitminerals.com.
 
 References
 
 
 Link to FiguresMillinoff,  T.B. and Davis, J.W., (1986), Geochemical and trenching report on the  Belle 1, 2, and 4 Mineral Claims, Omineca Mining Division, Assessment  Report Indexing System, Report 14489,  apps.nrs.gov.bc.ca
 
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 On behalf of the board of directors
 
 Niel Marotta
 Chief Executive Officer & Director
 info@sunsummitminerals.com
 
 For further information, contact:
 
 Matthew Benedetto, Simone Capital
 mbenedetto@simonecapital.ca
 Tel. 416-817-1226
 
 Forward-Looking Information
 
 Statements  contained in this news release that are not historical in nature may be  "forward-looking information" within the meaning of applicable Canadian  securities legislation ("forward-looking statements"), which  involve risks, uncertainties and other factors that could cause actual  results to differ materially from those expressed or implied by such  forward-looking statements. These forward-looking statements, by their  nature, require Sun Summit to make certain assumptions and necessarily  involve known and unknown risks and uncertainties that could cause  actual results to differ materially from those expressed or implied in  these forward-looking statements. Forward-looking statements are not  guarantees of performance. Words such as "may", "will", "would",  "could", "expect", "believe", "plan", "anticipate", "intend",  "estimate", "continue", "objective", "strategy", or the negative or  comparable terminology, as well as terms usually used in the future and  the conditional, are intended to identify forward-looking statements.  Forward-looking statements contained in this press release include, but  are not limited to: the timing of and size and scope of the drill  program at the JD property; indications and results from the drill  program; the Company's exploration plans, expectations and forecasts;  and the impact of the drill program on drill target definition in  conjunction with interpretation of the 2025 induced polarization  surveys. Information contained in forward-looking statements is based  upon certain material assumptions that were applied in drawing a  conclusion or making a forecast or projection, including, but not  limited to: the assumptions, qualifications, limitations or statements  relating to the pending results of the drill holes; the success of the  exploration program; the ability of exploration activities (including  drilling) to accurately predict mineralization, future drill programs  and high-priority targets; our timing and ability to receive assay  results for the completed drill program; the reliability of historical  information that cannot be independently verified by Sun Summit;  interests in the JD Project; errors in geological modelling; the  adjacent properties having any significance to the projects in which Sun  Summit has an interest; the anticipated results varying from current  indications, including the already released drill results; risks  inherent in exploration activities; volatility and sensitivity to market  prices; volatility and sensitivity to capital market fluctuations; and  fluctuations in metal prices. There is significant risk that the  forward-looking statements will not prove to be accurate, that  management's assumptions may not be correct and that actual results may  differ materially from such forward-looking statements. Accordingly,  readers should not place undue reliance on the forward-looking  statements.  The forward-looking statements contained in this news  release are made as of the date hereof or the dates specifically  referenced in this news release, where applicable. Except as required by  applicable securities laws and regulation, Sun Summit disclaims any  intention or obligation to update or revise any forward-looking  statement, whether as a result of new information, future events or  otherwise, except as required by applicable securities laws. All  forward-looking statements contained in this news release are expressly  qualified by this cautionary statement.
 
 Neither the TSX Venture  Exchange nor its Regulation Services Provider (as that term is defined  in the policies of the TSX Venture Exchange) accepts responsibility for  the adequacy or accuracy of this release.
 
 
  SOURCE:  Sun Summit Minerals Corp. |